The usual way a sweeps gets poofed is because the sponsor doesn't keep the link up, and it gets reported. The only people aware of this are those who report and the editor who pulls it,
unless there was discussion in the comments.
Because SA is a listing service, they can't control the sponsor end. So if a sweeps becomes a bad link, and many people report it, it gets pulled. IF the sponsor notes it ended early, the sweeps end date gets modified to push it into expired. These types are rare.
In the
Latest or New Sweepstakes forum
http://www.sweepstakesplus.com/smf/latest-or-new-sweepstakes-b2.0/
We'll occasionally post & sticky a thread for the ones that keep poofing {that's a LOT of work for the editors btw - having to pull/relist/pull/etc} but there is a BIG interest in - like:
Kelloggs.Com - (Purchase/Snail) Raisin Bran Sweepstakes
http://www.sweepstakesplus.com/smf/kelloggscom-purchasesnail-raisin-bran-sweepstakes-t82418.0.html
So no, there is no
specific location for poofed sweeps, but if you check out the chatter in comments {I check the 50 latest link throughout the day} and keep an eye on the
Latest or New Sweepstakes forum, you'll at least get a heads up to bookmark the link if you think it will poof.
Also - many sweeps have issues on holidays/weekends, and that is taken into consideration - but if the issues persist, the sweeps will get pulled. If you become aware of a formerly poofed sweeps that is live, just shoot me a pm, I'll check it out, and pass it on to an editor to be relisted. :sunny: