Querytracker.net - awesome site for finding agents and keeping track of queries. Also has an amazing forum with tons of info and boards to post queries, synopses, and first pages for critiques.
Preditors and Editors - great sight to check on agents/pubs/contests/etc to see if they are legit and/or recommended.
Helpful articles:
How To Write A Character Based Synopsis
How To Write a Non-Fiction Query
How To Write a Non-Fiction Proposal
How To Handle "THE Call"
How To Write a Hook Line or Logline
How to Write a Memoir
How to Show vs Tell
How to Find an Agent
How to Find a Critique Group
How to Define a Genre
How to Define Romance Sub-genres
How to Determine Your Word Count
How to Tell the Difference Between Fantasy and Paranormal
How to Use Those Pesky Words - Words that are often Misused
How to Use That, Which, Who and Whom
How to Use Apostrophes
How to Outline - According to Author Jackson Pearce
How to Write with Authority
How to Get Inspired
How To Stay (or Get) Motivated
How To Find the Time
How to Have Fun with the Crickets in Your Inbox
How to Write Heroic Couplets
How to Write Sonnets
How to Write Haiku
How to Write Ballads
How to Promote Your Book
Favorite photo and clip sites:
123RF Stock Photos
Morguefile.com
sxc.hu