Mid December I was fortunate enough to get a Seesmic invitation. After logging in, at first I didn't understand what was happening, but after watching what was going on for a while it finally clicked. Seesmic in simplest terms is a way to post video clips like a video blog. Everyone posts their clips one at a time, and they are all listed in a sequential time line. It is "Alpha" so there aren't advanced features like threaded conversations, but that will come. Right now it is one continuous time line of posts and many conversations take place in that time line, in many ways similar to Twitter. In order to sort out the chaos, as a general rule almost everyone participates in whatever is the current set of "topics". When the discussion of the current topic trickles off, the next topic pops up and everyone starts posting on the new topic. There is overlap of several discussions going on at once, and in general there are about 6 different topics that are "c...