I'm on the email lists of several writer/bloggers that I think have valuable information to share with other writers. One of these writer/bloggers is Kristen Lamb's blog. Kristen has written two books to help writers to create an active, positive presence on the Internet. She is also a founder of WANA, Internet classes to teach writers how to create this Internet presence. The name of her book from which the class site takes its name is We Are Not Alone.
Any writer wishing to create a greater Internet presence to publicize his or her work would probably benefit from Kristen's classes or even just reading her blog.