Poets & Writers is a site that treats writing like both an art form and a profession. Containing everything from daily writing prompts to contests and calls for submission, they also have a database of agents and conference listings for continuing growth. You can also subscribe to their magazine. Have a look at their “Tools for Writers.” There’s a lot to take in!
From P&W’s site:
Poets and Writers is the nation’s largest nonprofit organization serving creative writers. Poets & Writers, Inc., is the primary source of information, support, and guidance for creative writers. Founded in 1970, it is the nation’s largest nonprofit literary organization serving poets, fiction writers, and creative nonfiction writers. Our national office is located in New York City. Our California branch office is based in Los Angeles.