Oooh, new to webcomics? I'll answer both as a reader and as a creator!
I first webcomic I remember reading is Penny Arcade, way back in 1999-2000. I read it for years, but quit quite a while ago - it had felt unfunny for a while, and there were repeated instances of Mike Krahulik being a hateful jerkwad, saying terrible things about rape-survivors and transpeople (on different occasions) and failing badly in his apologies, so I don't feel comfortable reading it any more, even if I DID still find it funny.
Anyway - back then, there weren't really any community sites in the way we have them now. There was no Tapastic-equivalent, no Smackjeeves or DrunkDuck - everyone had their own website, and you really did find out through word of mouth. There were some websites that were associated with each other, but mostly it was a matter of stumbling on one comic, and hoping they linked to other good comics in their links-section. We didn't have Tumblr in those days, either.
The landscape of the internet was entirely different, and finding your way around took some doing. It took me a while to build up the courage to start posting art online - I got my internet-life started as a fanfiction-writer on fanfiction.net. I did, however, discover an excellent art-forum with the very unfortunate name eatpoo.com. I swear to god, it was a legitimate art-forum, and involved absolutely no eating of excrement - it was just a terrible joke picked by the site-creator. It was REALLY good, even though at, like, 13, I was too young to have the skills to fully participate, but I did get to talk colour-theory with Matt Rhodes years before he ever got a job at BioWare, and I got to read the comic that eventually became Ojingogo when they were still just a collection of sketches of a girl and an octopus, ages before Matt Forsythe was ever even a twinkle in the Eisner-jury's eye.
It was a different time, and sometimes all these newfangled social media and webcomics-platforms make me feel like a creaky old lady - and I'm only 28.
As for creating webcomics.... I didn't actually start drawing proper comics until I was about 16, I think - which is weird when I think about it, because I've always READ comics, and I've always been drawing, and I've always been telling stories - it just took me a good long while to realise that hey, what if I put the drawings and the writing together?
My first webcomic was weird mess of a thing, which I posted on DrunkDuck.com back in the good old days, and it taught me that a.) I am definitely the kind of person who needs to plan ahead, b.) I had a long, long way to go before I reached any kind of competence. The thing about DrunkDuck is that it was as much of a mess as my webcomic was - it was badly put together, looked terrible, and tended to explode on occasion. Sometimes the site went down, and when it came back up, it had eaten a whole bunch of my pages, and I had to re-upload, etc.
I kept going for a while, despite this, and did have a bunch of readers who kept coming back, but then I got into college to study Comics and Visual Storytelling, and my courseload just overwhelmed me and put my webcomic firmly on the sideline - and after a while, I realised I didn't miss it, so I posted an apology to my readers and told them I wouldn't be finishing it. I felt bad for abandoning it, but I really couldn't finish it. I'd gone in making the same mistake I see a lot of young webcomic creators still doing - I'd had no solid idea of what I was doing. I'd just come up with a beginning of a story and some characters, and hoped that would take me somewhere.
It didn't. I ended up with a jumbled mess of a plot going nowhere, and it just wasn't fun for me to work on.
I don't regret doing it, though! It taught me a lot about myself as a creator, and what I needed to avoid doing, and what kind of structure I'd need to be able to pull something off successfully. I took those lessons with me when I picked my next project - a 24 Hour Comic that accidentally became a 168 graphic novel. ^_^;