Here are some informative and innovative sites pertaining to web series.
Tubefilter runs several media properties focusing on the online entertainment industry. Most notable is Tubefilter News, considered the premiere online trade publication for web producers and distributors. They help run the Streamy Awards (IAWTV Awards), publish a weekly web television guide and host monthly Web TV meetups. Lots of great web series news here and a good place to discover new shows.
CreatorUp! is an online school for creating web series started by a group of entrepreneurial, web-savvy USC Film grads. They have lots of free video tutorials as well as affordable full courses on planning, writing, funding, and producing your next web project.
The International Acadamy of Web Television is a nonprofit organization comprised of digital industry professionals and those who are serious about entering the field. Their site offers useful interviews and info and for $90/year you can become a member and participate in peer groups, script readings, workshops, and vote in the IAWTV (Streamy) awards.