Comic Rank provides a service which tracks the readers of webcomics and tells you how many real people frequently read your comic. No vote-begging required.
Comic Rank is currently in a closed beta, and can be used by invitation only. If you'd like to be informed of updates, and get invitations as soon as possible, then please sign up here:
Due to an overwhelming amount of moderation activity required to keep up with demand Comic Rank's public leaderboards were disabled in September 2012.
We're working on getting public comic listings back, and many other things too.
In the meantime you might like to browse through free webcomics on these fine sites: