In fictionwise's latest Science Fiction sale, there's 30% off one and two year subscriptions to Analog and Asimov's magazines. Just over 40% if you're a club member.
Analog One Year:
http://www.fictionwise.com/ebooks/eBook1108.htm
Analog Two Year:
http://www.fictionwise.com/ebooks/eBook1393.htm
Asimov's One Year:
http://www.fictionwise.com/ebooks/eBook1109.htm
Asimov's Two Year:
http://www.fictionwise.com/ebooks/eBook1394.htm
For club members, that works out to just $1.79 per issue for the two year subs. Amazing value.