Internet Explorer support is on the decline.

Interesting reason for supporting IE6, although the articles lays out many more reasons why many websites are no longer supporting Microsoft's outdated browser.

Not only do the numbers of IE6 user continue to be significant, the types of users seem to be desirable as well: internet n00bs that click on ads and buy what they see (with the money that was not taken by Nigerian 419 scams).

Supporting Internet Explorer 6 « Content Here