Glad to see this live! But I'm not likely to spend the time to search your site each day, nor are my tastes predictable enough for "following" a channel to work.
What I'd like is a way to save search terms (mostly people's names) and have them automatically applied, with the possible results already in "My Matrix", and an eMail heads-up when something is found. That would fit LiveMatrix securely into my overloaded schedule.
Your blog is great - I've found more good events there than by searching the whole site.
Help get this topic noticed by sharing it on Twitter, Facebook, or email.