It must have just been launch day snags, because the 2 LinkedIn Applications I added to my profile appear to be fully operational. The Company Buzz application, which is just a feed of twitter searches returning tweets with your company names, is pretty limited since the search returns too many false positives and the links in tweets aren't active. Still, I could definitely see something like this being useful enough to spark more users logging in daily. Typepad's blogging application is just a straightforward blog feed, and hopefully by posting about it here I can create a recursive vortex.