In looking at Firefox extensions, something popped into my head.
There are MANY tools for commenting on websites and searching other people's comments, etc. Why haven't these tools caught on more and why hasn't one come to the forefront like some of the blogging tools?
It seems like the next logical step to me. It turns virtually any site into a blog in the sense that you can comment on other people's opinions. When do you think these tools will catch on (or have they and I missed it?) and is there one you think will take the lead?