Seeing as most of us are complete nerds/geeks/socially challanged individuals, I believe I can assume that at least some of you play Magic. I recently came across a program that allows people to organize/create decks and inventories as well as play across the web.
http://www.mwsgames.com/ allows users to come up with strategies and helps those find which cards that may help them better thier decks and ready them for tournament play. This program is surprisingly up-to-date, including Innistrad, the latest set released, within the master library.
Download takes only 20 minutes at most and again, includes all 20000+ cards that have been released. The program is a tad difficult getting used to, but after fidgiting with it for about 5 minutes, you can figure out, easily, how the program opperates.
The link above includes the download links, but if you're already interested, I will post the links here. DOWNLOAD AND INSTALL IN THIS ORDER:
Download 1 (This is the base program)
Download 2 (This is the card info update all the way to Innistrad)
Download 3 (This is a little larger of a download, includes 20000+ jpgs for the cards from Download 2)
Download 4 (This is the playtable for testing decks against each other)