Recently my safari has been crashing when I open some websites. Recent crashes happened on youtube, bbc, and other legitimate websites. I think it may have something to do with the information on the webpage, because I can go on that same website but on a different page, and it would work just fine. If this helps, it seems to crash when its about 80-90% loaded. Safari is updated with the latest patch(5.0.1) My Guess: It only happens with webpages that run advertisements. Possibly a flash player 10 problem.