who knows of a huge sport trading forum where I could sell my basketballcards?
912272
I would go with ebay.
1012428
http://www.ebay.com you'll sell them fast
129752
Use Beckett. I'm not sure if they have a website, but it wouldn't hurt to search.
1164203
Here is a free posting Auction website in New Jersey.  I recommend it highly. \n\nhttp://www.eptop.com
423506
go to Beckett.com and double that price for the reguar card
1086278
Ebay!  Or try sccards@scccards.com
1064369
go to beckett.com and type in the name and description of the card, I collect Basketball cards too.
203058
I know you are looking for something else but ebay will probably give you the broadest bidding base.  Strategic marketing by how you put them on Ebay is important.  Sometimes its good to use the third party sellers who use marketing strategy to get the biggest return because they get a percentage.  Simply dumping them on Ebay is not a good idea.\n\nThe market comes and goes for these things, usually the market would be higher during the baseball season.  MJ and JM would be worth more when something brings them in the news or during NBA or NFL playoffs.
512660
Try this website, if you can't find your answer here, then try ebay.\nhttp://tradingcard.f2g.net/trading-card_nba-cards.html
645790
www.beckett.com\n\nThe cool thing is they will actually store your entire collection and keep it updated. It's $4.99 a month per sport. You will have to manually enter each card though.
216024
Yahoo Auctions is a good place - no fees for listing or selling :)
268236
Try www.craigslist.com under sporting goods
13917
Go to baseball card shops and see what they will give you.  Ebay is another good place to sell baseball cards.  Card show are good also.
264041
Sell on ebay - www.ebay.com\n\nAvon seller
1096107
Cant help you mate sorry, try ebay, you can sell anything on there
414146
ebay would be no good. theyve banned the sale of sporting tickets, \n\ni would contact the club either at thier ticket office or online webiste.
489073
ebay. you can sell for a high price. btw, take out the good cards and sell them seperatly\n$$$$$$