Since May 7, Webmaster Tools shows that Google Crawler didn't visited my site ever since. Usually, the crawler visited this site daily and now it stopped? What's going on? :O
Do you mean on the Overview page: "Googlebot last successfully accessed your home page on May 7, 2008." ??? I wouldnt worry about that. Mine says that too and Googlebot still visits
Some times Googele webmaster tools update the data very late. May be you need to wait a little. Also, do you have the faster crawl rate option available? Build lots of backlinks. Try to get some back links from High PR pages, this will help your site to be crawled faster.
Keep on doing what you normally do, and just wait a while and see if it makes any difference. They may not have updated it yet.
i have around 60k backlinks..site 2 years old...also, the backlinks from Webmasters are not updated for 2 months now...and you're telling me this isn't weird?