Specifically, by hedda-foil, co-founder of the National Ballot Integrity Project, and Bev Harris of BBV.org. the 527 was formed specifically to fund the recounts, and because neither the Ballot Integrity Project nor BBV.org could legally do so on their own.
Hedda and DUer IdaBriggs were instrumental in starting this whole ball rolling in the first place (see Background below).
If you want your money to go to funding the recounts, IMO that's the best one to make your donations to. Money given to BBV.0rg will also be well-spent, since they are doing massive FOIA requests across the country, but I don't believe any of that money can legally be used for recounts. *****Want to Help America Recount? The website is UP!
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=132x1344801Link: www.helpamericarecount.org
***** Donations for the Recount" Fundraising Kit > > >
(Use this to send to your friends -- enormous amount of info -- pick and choose what you need)
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=203x37833BACKGROUND:DU INFO ALERT: Why Recounting in New Hampshire Could Save Democracy
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=104x2617155Need Some DU Help w/New Hampshire Stuff!!! (URGENT)
http://www.democraticunderground.com/discuss/duboard.php?az=show_mesg&forum=203&topic_id=26802&mesg_id=26802RALPH NADER MAY SAVE THE WORLD!!! (Its NOT Over in NH!) Updated Fri 8:15p
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=203x25116Nader requests NH vote recount. (Did we just make a huge blunder?)
http://www.democraticunderground.com/discuss/duboard.php?az=show_topic&forum=102&topic_id=965216Nader, Cobb and Badnarik may all be willing to look into recounts in Ohio
http://www.democraticunderground.com/discuss/duboard.php?az=view_all&address=203x26843