I got into the Beta test for FriendFeed. It is a great idea at first glance---a site that serves up a feed of all your activity on different services, like YouTube, Flickr, Amazon, personal blogs, Netflix, etc...
You can see my resulting feed here. (Be warned, it probably won't be up for long.)
This is too public for me. If I favorite a video in YouTube, do I intend to then broadcast that preference to the world? (I know this is still visible on the Web, but it's not going to show up on the first page of Google search results for you, like a Twitter feed does.) Makes you think about every single thing you do online, and how transparent it all really is. Seeing it all drawn together in one place really emphasizes it. And to me (at least as far as personal, non-work-related stuff goes), that's a negative.
I didn't go into FriendFeed feeling this way. I thought, "Wow! How cool! All of my online activity in one place!" And it seemed terrific as I looked through the first eight listings on my feed---all posts from this blog. Just peachy. And then the ninth entry was from Flickr---photos of my daughter's back when she was having allergy patch testing done. Not good. Must delete.
In some ways, the best part of FriendFeed is the warning it provides for the online naive---no matter how scattered and seemingly buried your online activity is, it can easily be brought together in ways you never intended for the world to see.
Hmmm... must have taken it down already. Pity - I'd have liked to have seen what it does without exposing myself!