BluePineapple.com Party Games [more]
Free instructions for playing unusual party games. Suitable for all ages, but especially fun for high school and college people.
http://www.bluepineapple.com/partygames

Eventwise Party Animals [more]
Categorized selection of party games. Includes user submissions and party talk forum.
http://www.eventwise.co.uk/asp/PartyAnimals.asp

Fib-Or-Not Game [more]
Game in which a story is told and the audience must guess whether or not the person is fibbing.
http://www.gatheraroundgames.com

Humpfest [more]
A game were people take photos of themselves with various objects. Image gallery and rules.
http://www.humpfest.ca/

Party Game Central [more]
Party games and birthday games for kids, teens, and adults including ideas for large groups, icebreakers, pool parties, team building and outdoor activities.
http://www.partygamecentral.com

Party Game Ideas [more]
Categorized collection of party games and activities for birthday parties, baby showers, wedding showers, and holidays.
http://www.partygameideas.com/

Party411 Party Games [more]
Collection of games to be played at all types of parties -- kids and adults.
http://www.party411.com/gameguide.html

Partydirectory.com [more]
Features instructions for a selection of party games including outdoor, relay races, ice breakers, and shower games.
http://www.partydirectory.com/games/index.html

The Pumpkin Shell [more]
Ebook featuring information, ideas, and themes for planning and hosting a scavenger hunt game. Other ebooks offered include 25 party games, and kids craft recipes.
http://www.thepumpkinshell.com/

The Screen Test Game [more]
Home video camera game in which teams perform short movie scenes. Includes instructions, tip list, and purchase information.
http://www.screentestgame.com/

Yankee-Swap.net [more]
Gift-giving party game suitable for small to large groups. Offers free download of the official rules for a Yankee Swap in PDF format.
http://www.yankee-swap.net/