(Found Via David Lee King), I was pointed to Kathryn Greenhill blog post entitled When should you stop blogging ? in which she says:-
While I don’t think I have any intention of stopping Librarians Matter, I’ve noticed my posts are slowing down as I enter my third year. I’ve been spending more time twittering, on new work projects, blogging elsewhere , getting slowly interested in videoblogging - and even trying to go walking at 6am to spend some one-on-one time with Mr10.
I've gone through periods where i have struggled to blog, but the idea of just twitter or not blogging seems a sad loss. I like blogging as I feel it keeps me up to date, I have to read something current and I interact with people I respect. I even wish it made me a better writter, but thats not so i'm afraid. If your thinking of quitting blogging check Walt Crawford's Thinking about Blogging in Cites & Insights: Crawford at Large.