Both <script> and <iframes> are HTML tags. However, there are some differences between them:
– IFRAME tags are recommended if you are coding them directly to your page. IFRAMEs load independently of the page and that means faster page load times. The major drawback of IFRAMEs is that it does not support expandable rich media, combo tags or contextual networks (such as Adsense or YPN).
– Script tags are recommended if you are placing them in any other adserver or as a default in another network interface. Script tags supports expandable rich media, combo tags and contextual networks (such as Adsense or YPN). They will work fine when coded to the webpage, but they sometimes cause a minor lag for the user who’s loading the web page since it’s loaded inline with the page.
However, so far, this site has only Google Adsense which uses the <script> tag. Millions of people are using Google Adsense to monetize their website and the side-effect of that minor lagging time in serving script tag is pretty negligible.
In MySQL, there are basically three ways where you can insert data into a table where a duplicate might happen. 
Upgrading wordpress can be a dauntng task for some. Actually it can be painless if you know how. I’ve recently upgraded wordpress using a way which I never thought was possbile. 
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Packt just revealed that WordPress is the first winner of the 2007 Open Source CMS Award, picking up the best Open Source Social Networking Content Management System. In a very close category, WordPress came out in front of Elgg and Drupal, who finished joint second. 
In the previous 3 to 5 years, online social sites such as myspace, facebook, friendster and hi5 has gained pace and 
