Here's the user agent string from the "TweetmemeBot".  It says it's Firefox,
which I doubt.  Technically speaking, this is an invalid User-Agent string
because the bot (or whatever this is) is not properly identifying itself
to the web-server:

89.151.116.52 - - [06/Apr/2009:09:04:40 -0700] "GET /star HTTP/1.1" 301 248 "-"
    "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.0.6) Gecko/2009011913 Firefox/3.0.6 TweetmemeBot"


A more appropriate User-Agent string would be:

Mozilla/5.0 (compatible; TweetmemeBot/1.0; +http://www.tweetmeme.com/)


Please change your bot's User-Agent to something more standard.

Regards,
Mark


http://kolich.com