I'm just throwing this out as a starting point - how many of us are familiar with or comfortable with the various aspects of 2.0? I'm finding that there are some aspects that I've used for years - such as blogging - but others with which I'm completely unfamiliar. My tendency, of course, is to try to implement things with which I'm familiar myself. But that's surely not the best criterion for choosing what's best for my patrons! So, how are you becoming familiar with 2.0? I've been trying to get started with a 23 things list, and while I'm not being as accountable as I should be...it's been fascinating so far!