Here are some questions. Answering them will help people like myself make decisions as to whether the advice that you give is worth much.
• How long has your webcomic been running, and what is it's readership? (unique views a week, or something like that)
• How are you doing in terms of webcomic business? (Clearly, I'm not asking for hard numbers for that would be rude, but try not to be too vague and do be honest)
• What percentage of your genome is of the Sciuridae family.
I'm tempted to just quote from Beetlejuice in regards to my qualifications, but I don't feel like looking up his whole spiel. So I guess I'll just be frank.
My comic has been running, on and off, since September of 2000. I've never really had a good sense of my readership. My traffic fluctuates greatly, obviously, depending on when I'm actually updating. Right now, I mostly have a couple dozen friends and acquaintances reading it. Probably a few random people. I don't get much feedback or comments on my site. My best year was, by far, 2006, when I was able to maintain a M-W-F schedule for six months or so. I had a decent amount of people reading then. Fans responded to a survey or two, posted some comments. It was nice.
I've made barely any money on my comics, and I've sinked way more money into my creative ventures than I have earned. I've never had enough traffic to make much on ads, but I do fun Project Wonderful spots currently. I've done a couple conventions where I sold a few print on demand comic books (3 pamphlet issues and one trade paperback) and some sketches. I sold several more copies of the comic thru one of my local comic shops.
That's really about it. Grimstone has always been more of a hobby / experiment for me. A learning experience. I'm working on some new strips right now, hope to start updating again soon. And I've got another project that I'm going to be more serious about, so I'm waiting until I decide just what route I want to go with it before I put anything out there.