I am going to list what I believe is most important for the marketing of your webseries. Some may be irrelevant to your project, or you may need additions. Adjust it according to your project.
First and foremost, make a website for your webseries. Place the series on as many sites as possible, such as YouTube, Vimeo, Blip.tv, etc. Different viewers go to different sites, so opening it up to as many people as possible should always be your goal. You should know about youtube’s partnership program that allows you to gain some “sponsorship” from them. They will likely not pay you much, but it is definitely worthwhile.
Maybe try to enter it into film festivals, especially those specializing in new media. I see the publicity for media heavy festivals as publicity within the industry, which can certainly help you with future collaborations.
This is kind of obvious, but make a facebook for the series. Twitter account. Tell your family and friends to share it with their families and friends.
If you find that your locale may be to your advantage, approach local media sources. If not, or in addition to, approach relevant blogs and other similar media sources or possibly any random but somewhat relevant sites on the internet.
Sign up for Cynthia Turner’s cynopsis media for the latest breaking news about everything digital…it’s called Cyn Digi for the sign up. I highly recommend it to stay up to date on the happenings within the industry. It’s the insider’s news source.
Think about attending different new media festivals to meet other artists.
Read read read all that you can about webseries. And watch! Know what else is being aired online. Maybe you can ride the wave with someone else that’s already popular. Or maybe you can fill a void that you believe exists. Maybe there is a wave of content about a subject, but nothing more than news sources about it….and you say to yourself, “how cool would it be if there was a show on this subject?”
This leg of the game is all about putting yourself out there. Be scared, but realize fear can drive you. Come up with other creative ways to get the word out there. Make sure to get people’s opinions on it. Let your audience be interactive with it. Let them feel involved. Who knows, they may be able to help you more than you can imagine.