I've never really gone too far out of my way to promote my webcomics. I mention them here and there (often in a derogatory way, which is a big problem) but I don't really sell it. There's a lot going on but it mostly boils down to a lack of confidence. It took me a while just to post something on DrunkDuck and then I let the community aspect of that site bring in a few readers (some stayed, most didn't). With my own hosting, the community thing just isn't the same. I can link to my comic or site when I comment on other people's sites (even that feels awkward to me) and I can try to talk about it a bit more (on here or with friends) but I just haven't been able to put out a full on blitz.
Maybe one day I'll get over it. On the plus side, I'm not looking to make a career out of it or anything but it would be nice to have some readers to make the work worthwhile. And for now, I do have my DrunkDuck readers.