I don't think so. In TechCrunch there is the AOL-CrunchFund problem. All of the leavings are related with the CrunchFund issue, and I do not see any sign of bubble here.<p>In Mashable... well, things are different. The blog has changed its direction, I think it has lost a lot of quality, and there is a lot of "crap" posts. An example: <a href="http://parislemon.com/post/5125662166/im-sorry-but-this-is-just-sad-and-pathetic" rel="nofollow">http://parislemon.com/post/5125662166/im-sorry-but-this-is-j...</a>. Probably, the five editors who left didn't like this change and decided to leave.<p>Summing up, I think there is no bubble. Editors leaving can't be taken as that (maybe it could if editors were fired instead).