A very helpful and interesting site, includes loads of information on writing-related jobs, markets, contests, sites etc. Inc. An association for writers of sci-fi and fantasy provides a site. Preditors and Editors Guide to publishers and writing services, includes details on scams. Great resource for authors, editors, agents.
Authors can post their book to facilitate getting an agent or publisher.
InkSpot Very informative online writer's magazine, it has a huge section specifically on electronic publishing .