It's the 2011 OTW Membership Drive! if you care about the direction and sustainability of the OTW and its projects (such as the AO3, Fanlore, TWC, etc), join the Org now. $10 USD gets you full voting rights for a year. If you join by 17 October 2011, you'll be eligible to vote in this year's Board election. Voting in the Board election, particularly this one, makes a very real difference. With four open seats, the 2011 Board election is particularly important, and potentially transformative.
In addition to granting voting privileges in the Board election, pledges to the OTW also go to support the Org's projects, including its flagship, the Archive of Our Own. The AO3 is a pan-fandom archive that welcomes all users and is working on supporting all types of fanworks, but to keep the lights on and the servers running we need money, plain and simple, and money won't come without your support.
And you can also get cool swag. I have to say, my OTW mug is pretty darn awesome.
ETA: Board member Rabbi Rachel Barenblat has a post on donating to the OTW before Sukkot.
For those interested in the AO3, the Tag Wrangling Committee is having an open house on Saturday 15 October!