If you are a writer interested in becoming published, I strongly recommend that you join a writers' group. You will find a wealth of information, contacts to help further your career, and learning opportunities to grow your craft.
I belong to the American Christian Fiction Writers and have since 2006. This is a great organization if you are interested in publishing in the Inspirational market. If you are in the Oklahoma City metro area, check out our local ACFW chapter: OKC Christian Fiction Writers.
Another large group is Romance Writers of America (RWA). They have many local chapters as well as online chapters.
If you are interested in writing for children or young adults, check out SCBWI.
Where can you find information on more writers' groups, as well as info on publishers and agents? Check out the most current version of the WRITER'S MARKET GUIDE. You can probably find it at your local library or Amazon always has it!
Some great blogs/websites on writing:
Randy Ingermanson's Advanced Fiction Writing site
Camy Tang's Story Sensei blog
Mary DeMuth's The Writing Spa (I love her Proposal workbooks)
Susan May Warren's My Book Therapy