Twitter on PHP VERSUS ASP.NET
NETTUTS is a good website for web development and design tutorials: http://nettuts.com/.
Jeffrey Way, the person behind the NETTUTS website also maintains a NETTUTS profile on both Facebook and Twitter. Turns out he innocently posted an update to TWITTER in support of ASP.NET with a slight knock against PHP, and apparently that brought a lot of responses from other Twitterers, both ASP.NET and PHP developers.
For all the dirty details, see my complete blog post here http://blogs.msdn.com/anna/archive/2009/01/23/twitter-on-php-versus-asp-net.aspx