HELP:
Getting started (your first steps on GameKnot)
Frequently asked questions
Advanced player search
Chess rules (FIDE)
Online chess games database | Chess openings
Site map

EXTRA OPTIONS:
Premium subscription status
Chess problems and puzzles | Annotated games
Download GameKnot Chess Toolbar for Internet Explorer
Practice chess board -- where you can set up an arbitrary position for analysis, print it, download the diagram as an image, export to FEN notation or PGN, etc.
Your past game history | win/loss/draw table | recently completed games
Your stats and profile
Upload a picture to your profile page | Create an avatar for your account
Your buddy list | ignore list
Postpone your games
Set up automatic challenge decline rules
Forums
GameKnot referral program
Download PGN archives of your active and past games
GameKnot's online store:   

USEFUL STUFF:
Free chess resources for your website/blog
  Add daily puzzle to: 
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Add GameKnot to Google Toolbar
Add Daily Puzzle to Google Toolbar
Link to GameKnot from your own website/blog:  Link to GameKnot