This is weird. Until 1 of january 2010 all of facebook share buttons and retweet buttons work on my site www.bizibozmaz.com . But all posts after this date could not crawled by neither facebook nor tweetmeme. If i change permalink structure to default ugly one it starts to work but i don't want to use them. I realized it is about the dates inside the link url but i can't pinpoint it. Does anybody have any idea?