"All you have to do is visit www.facebook.com/RamCityMemory, and click the "Like" button. Then, if you place an order between now and the end of the year, just post a comment on our Facebook Wall with your order number and I'll give you a $15 refund back to the credit card or paypal account used to pay for your order. (Offer only applies once per customer, and can't be used with any other special discounts or offers, other than those specifically provided on our website already, such as our normal bulk-buying discounts.)"
Edit: I am not a rep, but realised the above reads like one. I just cut 'n' pasted the above from a store rep on a discussion forum.
Edit 2: Appears from comments that this is only a bargain for Apple/MAC memory and not PC memory. YMMV
Mod: Rep wants to point out that this deal is actually for all computer users - apple, pc's, servers etc.
Mod: Edited title to clarify that mac ram prices are good. PC ram prices could be better
Even with the $15 discount, it's more expensive compared to other places. No deal.