"; */ ?>


30
Oct 07

How to Build DIGG in Ruby On Rails (Free Book)

    I’ve been playing a lot lately with RoR (Ruby on Rails) and of course I love DIGG, hence I was very pleased to stumble upon a very interesting work by Patrick Lenz, which is a definitely cool and enjoyable free book (pdf) on how to build a full blown DIGG in Ruby on Rails from scratch!

    I spent a couple of hours reading and trying, and I am already (!) building the app (or should I say building the DIGG) at this point of writing this post. The book uses Web 2.0 approach which covers a lot of Web 2.0 along the way – very cool! I highly recommend it to anybody who has the same passion, since it really is an awesome read!

    Please hurry, as this book is only free (since the moment of me writing this) for "32 days, 14 hours, 21 minutes, 49 seconds" more, and I guess will blend in with many other books that we have to pay for once the time is up (currently it is $26.37 at Amazon).

    For something "not very free", but "the best" on Ruby on Rails, there is another great book "Agile Web Development with Rails, 2nd Edition" that can be obtained, well, same place all other "not very free" books are obtained :) here.

    It is not in any way an intentional advertisement for any of the links above, I am just so exited reading it, that I could not stop my self from sharing with the rest of the universe! ;)


19
Oct 07

Help Google to Generate Only Relevant Ads!

google money    I recently decided to participate in Google Adsense program where Google shows its ads on my blog, and I get paid when somebody clicks the ad. This tool from Google is far from being fresh and new, but I think it has a very cool idea behind it:
        – ad owner wins, because people go to her/his website,
        – Google wins, because ad owner pays Google for a click (through Google Adwords)
        – I win, because I keep writing stuff on my blog and get paid by Google for a click.

   One of the main challenges and the main thing about any kind of ads from any place is their relevance. Will you buy milk on a porno site? Or do you need a pack of Marlboro Lights, when searching for a Whitening Toothpaste? Probably not really…

    So you see the logic, the more relevant the ad is, the more chances people are going to pay their attention to it and, in the case of Adsense, "click it".

    Relevance is mostly achieved by the Google algorithm that analyzes your page (the page where ads are going to be displayed) by reading its content and "data mining" it. Then it makes a decision on what exactly "this" page is about, and what ads Google has on that topic. Once all is figured out, Google places the resulting ads on the page.

    But there are ways we can help Google not to "offer milk on the porno site" (although Google does not do porno sites – just a colorful example here :) ), but instead target its ads right to the point. One of such ways is "Section Targeting".

    how Google explains it:

    Section targeting allows you to suggest sections of your text and HTML content that you’d like us to emphasize or downplay when matching ads to your site’s content. By providing us with your suggestions, you can assist us in improving your ad targeting.

    You can read their short tutorial here. The idea is simple: your html page has a lot of text, including links, other advertisement, people comments, etc. but what you really want Google to focus on is your content ( in my case it is my blog post ). So you can use three HTML tags that will focus Google Adsense engine on your content. These tags are:

               Section start tag:               <!– google_ad_section_start –>

               Section end tag:                <!– google_ad_section_end –>

               Ignore section start tag:      <!– google_ad_section_start(weight=ignore) –>

    Sample from Google:

<html><head><title>Section targeting</title></head>
<body>
 
<!-- google_ad_section_start -->
 
This is the text of your webpage. Most of your content resides here.
 
<!-- google_ad_section_end -->
 
</body>
</html>

    From the sample above you can see how (start, end) tags can be used to focus Google only on the  main content. In order to ignore the content, wrap it with (ignore, end) tags as follows:

<html><head><title>Section targeting</title></head>
<body>
 
<!-- google_ad_section_start(weight=ignore) -->
 
This is the text of your webpage. Most of your content resides here.
 
<!-- google_ad_section_end -->
 
</body>
</html>

    But there is something interesting, that is not included in Google’s tutorial, that you can do with tags – you can nest them, as well as focus them on multiple sections! I have spoken to the Google Adsense representative, gave him a couple of examples I would liked to use the tags, and he confirmed that it works.

    So here is very cool and efficient things that you can do with adsense tags in addition to the usual stuff…

    nest those tags:

<!-- google_ad_section_start -->
 
     my content I want to focus on
     .....
 
     <!-- google_ad_section_start(weight=ignore) -->
 
          content I would like to ignore
 
     <!-- google_ad_section_end(weight=ignore) -->
 
     my content I want to focus on
     .....
 
<!-- google_ad_section_end -->

    so, in the above example we ignored a part of the section (content) we actually want Google to focus on – cool, right? :)

    That is not all, you can also focus on multiple sections, like this:

<!-- google_ad_section_start -->
 
     my content A I want to focus on
     .....
 
<!-- google_ad_section_end -->
 
     some other irrelevant content
     .....
 
<!-- google_ad_section_start -->
 
     my content B I want to focus on
     .....
 
<!-- google_ad_section_end -->

    This really opens the doors to finetune the relavence of your ads, which, who knows, maybe someday will make you a millionaire! ;)


16
Oct 07

Ubuntu Gutsy Gibbon Parties all over the World

Ubuntu LogoAccording to Ubuntu once Ubuntu 7.10 (Gutsy Gibbon) is out, there will be plenty to celebrate, whether you were directly involved in the release process or just rejoice because the next iteration of the best distribution is finally out.

    Thursday, 18th of October ‘2007 is the tentative date for Ubuntu 7.10. Many parties will be on this date, or you can pick your own date! Go ahead and put down your favorite pub, park or cafe and celebrate getting Gutsy Gibbon out of the door!

   Ubuntu Feisty Fawn

    get it while its hot :)

    Come and join Ubuntu parties all over the Globe! The schedule of already "Confirmed Parties" are here

picture’s source


10
Sep 07

Avant Window Navigator – Dual Monitor Hack

avant window navigator  Ok, so you have successfully configured dual monitor for you (Gnome/KDE) desktop, and now you have decided to take it even further and install and configure Avant Window Navigator – way to go!

    Although most of your installation/configuration will succeed by following one of the tutorials, in case if you have dual monitors, and/or you use Option  "MergedFB"  in "xorg.conf" to merge two monitors into a one screen, standard tutorials will not work. This will require additional hacking to get AWN to work right, and here is where this article comes in :)

    PROBLEM:    One of the problems that AWN has with multiple screens/monitors is to identify the position of where it needs to put its task bar. In case of two monitors merged into one big screen, it does not adjust to this new slightly larger "coordinate system", and fails to place its task bar to the right place on a screen (usually at the bottom of the bottom screen). This can be solved, of course ;)

    SOLUTION:   AWN stores monitor resolution info in a file called "%gconf.xml" which is located here:

          user@host:~/.gconf/apps/avant-window-navigator$ ll
          total 32
          drwx------ 2 user user 4096 2007-07-18 11:41 app
          drwx------ 4 user user 4096 2007-06-26 23:47 applets
          drwx------ 2 user user 4096 2007-08-06 21:52 bar
          -rw------- 1 user user 776 2007-09-10 09:52 %gconf.xml
          -rw------- 1 user user 776 2007-06-27 22:57 %gconf.xml.dual
          -rw------- 1 user user 776 2007-06-27 10:41 %gconf.xml.single
          drwx------ 2 user user 4096 2007-06-27 17:59 title
          drwx------ 2 user user 4096 2007-06-30 14:16 window_manager
          user@host:~/.gconf/apps/avant-window-navigator$

    "%gconf.xml" is an XML file that has several elements called "entry". The ones we are interested in would be:

 
        <entry name="monitor_height" mtime="1179886419" type="int" value="1024">
        </entry>
        <entry name="monitor_width" mtime="1179886419" type="int" value="1280">
        </entry>

    These values would work fine if we had a single 1280×1024 monitor, but if we have our (e.g.) bottom monitor as 1280×800, in order for AWN to display its task bar in a correct spot (the bottom of the bottom monitor), values have to change to:

 
        <entry name="monitor_height" mtime="1179886419" type="int" value="1824">
        </entry>
        <entry name="monitor_width" mtime="1179886419" type="int" value="1280">
        </entry>

    So what we did, we summed up Y-Positions of both monitors together: 1024 + 800 = 1824. Now when AWN is calculating its task bar’s Y-Pos offset, it will take 1824, as the Y-Pos max range, and will do the right thing!


30
Jun 07

iPhone: 20 Things It Does Not Have

 

 

Thinking on jumping on a new and "cool" iPhone? Think twice, it might be better to hold the thought for a month or too. And here is why…

  

  • Bluetooth is ONLY good for connecting a headset. That’s it.
  • There is no file browser on the device at all. Data must be organized (if at all) in the appropriate application.

  • The camera is a simple application that has ONE button: the shutter. Pictures come out okay on the device, but nothing too fancy on a monitor, especially if it was an attempt at a macro shot.

  • SIM card is damn near impossible to open, if at all. I didn’t look into it extensively.

  • Web browser is slow, even over WLAN. Even the simple OneList web app that was created takes around 20 seconds to load over WLAN. You can not highlight, cut, copy, or paste and text from a website, and you can not save any images you find from a website either. The only nice thing about it is the tabbed browsing, which crashed on me when I went to Engadget and YouTube on two tabs. This is the only application that allows you to use the keyboard in landscape mode.

  • The keyboard sucks. It gets slightly better after the iPhone "learns" you, as the employees said, but even then, it’s not a device you can use with one hand comfortably, much less without looking.

  • You can only send one picture at a time in an email.

  • No custom ringtones (yet, as we were being told) and the alert tones can not be changed whatsoever.

  • The default ringtones are incredibly lame.

  • The only form of customization outside of a lame default ringtone is the wallpaper, which you’ll only see when you need to unlock the device or when you get a phone call.

  • "Picture pinching" or using two fingers to zoom on any content is certainly fun to play with, but not practical whatsoever. This operation depends solely on using the device with two hands.

  • No document editor or native viewer. You can not store documents on the device to be viewed, they can only be viewed as attachments when they’re sent to your in an email.

  • Visual voicemail is laggy and reacts about the same way as pushing the fast forward and rewind buttons on traditional voicemail systems. The only advantage is for those that get that many voicemail messages a day that they need to sort them according to priority.

  • NO games. None.

  • No voice dialing.

  • No speed dialing (which can be made up by the "quick list", but getting to that quick list isn’t as fast as holding a single key on a real keypad).

  • No video.

  • No MMS.

  • It’s still <4GB for $500 and <8GB for $600

  • It only takes around 2 hours to explore every menu without any options for expandability except to scrounge around for new web apps that will load slowly and nowhere near as smoothly as the native apps.

    This device looks like it was aimed at the general consumer who has the money to spend on such a flashy device, but it leaves so many basic features behind that it’s almost impossible to consider it a success as a mainstream device. It encourages the advanced user to move away from MMS and into email to send images, but leaves out any advanced features advanced users would be accustomed to, and still retains a huge price tag on top of it.

    It’s certainly pretty and Americans will buy it because of that simple UI, but anyone who’s familiar with other operating systems would be appalled. This phone needs to be unlocked and cracked WIDE open to make much better use of the multi-touch system. That, or it needs an immediate update in iTunes to rework every feature.

source