The only one Im a member of at the moment is the FSAE team at my college. Im in charge of the cost report and any other little odditites the business manager hands over to me, but Im mostly invovled to learn more about cars and automotive engineering.
I used to be a member of a Canadian local of the American Federation of Musicians, but I haven’t performed in quite some time, nor at all in this country, so I let my membership lapse. Currently, I don’t belong to any organizations.
The National Rifle Association. I’ll make that a lifetime membership one of these days when I’m flush.
The Farm Bureau.
The American Waterworks Association.
I think that’s it, if I don’t count AAA, which, since I’ve never used it, I don’t.
None.
Alcoholics Anonymous is my main one. I was also a Girl Scout back in the day.
There are several I have supported with my time and/or money in the past-
Make A Wish
Miracle Ranch Orphanage
Sea Shepard
Earth First!
Team Up for Down Syndrome
USO
Negro Leagues Baseball Museum
Amnesty International
The United Methodist Church
That’s all I can think of at the moment.
That is cool; I was just a little confused.
I forgot as my job pays for it. I am a member of COMMON. This is the IBM midrange user group providing education & networking for IT professionals using System i, iSeries & AS/400. There are a few other tech groups that I barely participate in.
Jim
Currently I am a member of:
American Society for Enology and Viticulture
Society of Wine Educators
Women for WineSense
Free The Grapes
Both my husband and I are members of:
Sonoma County Bicycle Coalition
Santa Rosa Cycling Club
American Hombrewers Association
Not sure how or if it counts, but we are dedicated every-8-week whole blood donors at Blood Bank of the Redwoods, we’re each getting close to the 2 gallon mark.
And we’re former members of the US Power Squadrons.
I know my husband is a member of the ACLU, as well as a few other organizations, most of them pertaining to his field, but I couldn’t tell you what they are because I just don’t know.
FCM I can’t belive you’re not a membe of NSPE 
Mine are:
American Society of Civil Engineers
American Consulting Engineers Council
Association of State Floodplain Managers
I’m a member of the Episcopal church here too.
That’s all I have time for.
Technically I’m a “card-carrying member of the ACLU”. But all I did was make a donation. I’ve given donations to other groups that probably now call me a “member.”
But I don’t think of that is being a part of an organization so much as being the target of a marketing technique.
The National Association of Securities Dealers as well as my local United Church of Christ.
I’m on the City Council, which will make my obit sound like I was a civic-minded.
I just joined (paid a membership fee) to the AARP, but I don’t know why. I haven’t investigated the benefits of membership yet.
When I lived in Seattle I was on the local library board and the board of directors of a child care organization (Seattle Day Nursery it was called then), and was secretary of a community council.
If I’m ever in Santa Rosa I’m gonna move Heaven and Earth to wrangle a dinner invitation! 
(Not that I’m worthy. My enological knowledge is limited to the ability to distinguish grapes from not-grapes. Most of the time.)
I’m a member of Toastmasters International (club founder and past president, and past area governor) and the Society for Technical Communication (haven’t so much as gone to a conference in about 2 years).
That’s it – no religion, no political party, nothing else. I’ll probably join the HRC and ACLU someday, but just haven’t gotten around to it yet. I do have a nifty HRC polo shirt, though. 
American Library Association
Association of College and Research Libraries
Academic Library Association of Ohio
Institute of Internal Auditors
I don’t attend church, so no organizations there, I don’t have kids, so no PTA/PTSA organizations…basically, right now it’s professional orgs only, but that could change before too long.
I’ll list things that I may not currently be a paid-up member for, because our finances have been ugly this year and I’ve let EVERYTHING lapse. So, if you recognise the organization and are going to berate me for not paying current dues, please recognise that I WILL as soon as I can!
PSCA (Pyrenean Shepherd Club of America)
TCOTC (Twin Cities Obedience Training club)
Native Plant Society
WildOnes
SDMB (Fancy that… I paid!)
NADAC
BratPack Flyball Team
Minnesota Zoo
National Geographic Society
Mostly obscure stuff…
My church, my university’s alumni association, DeMolay, Knighthood, US Navy Fleet Reserve. Only one of those costs me money and one of those gets me money.
The Bankstown Sports Club (never seen any actual sport played, but it’s got some snooker tables 
)
The Communication, Electrical, and Plumbing Union (reluctantly)
About to join the Australian Railway Historical Society, I think.
The Humane Society, though my membership has probably lapsed by now.
I also get The Satellite News in the mail, does that count? They haven’t sent me a membership card or a decoder ring, or anything.
No moving of Heaven or Earth necessary. We love meeting up with Dopers.
And nonsense on your worthiness. If you have a mouth and are capable of swallowing liquids you’re worthy. 