The puzzles of the internet world

Recently several people have asked me to join their list on Linked In or to register as their friend on Facebook. I have done all willingly, except for one person I truly didn't know. Another acquaintance signed me up for Good Reads and every once in a while I get a long list of books she's read and liked. But what do I do on all these sites? I know my children are on Facebook and maybe I should look them up--I'm now a registered user, if I can remember my user name and password. But it seems to me you could spend all your time keeping up with these people on the various sites, and if they want to keep up with mr, they can read this blog. So I'm really at a loss what to do about it. I don't want to seem an ungrateful friend . . . I'll appreciate any advice.
We are under dire storm warnings tonight--tornadoes and the whole thing--but so far we haven't gotten a drop of rain. It's late enough in the evening now that I won't mind if I have to bring Scooby in for the night, and the storms are supposed to pass (if they ever come) well before morning, so I shouldn't have a problem getting him out in the morning. I know we need the rain desperately, but when I hear it in the forecast, my mind immediately jumps to how I'm going to deal with Scooby.
I started keying in typo corrections on the first portion of the second mystery tonight, and could not find one section. Apparently sometime after I printed it out, I revised. So now I have to go back, reread all ten chapters, and figure out if what I've done is right. I keep doing that to the point that I seem to never write another new word. Halfway through the book, and I just keep rewriting. I suspect its because I'm not sure where I'm going, though I have lots of notes. I also suspect if I got some positive feedback on the first novel, I'd throw myself into this one with more vigor. Is this truly writer's block? I know enough to know that the way through that is to keep writing, just as the way around phobias is to do what scares you (that's a whole other story).
But I have cleared my desk of other chores--my income tax information is off to the accountant, I don't have to write another column until at least a month from now, and all the flotsam and jetsam are cleared up. Except I'm gong to start tonight on concrete plans for publicizing "the" cookbook--bookmarks, mailing lists, reviewer lists, etc. I am getting such good feedback about the cover!