http://fastcamerastore.com/index.php?main_page=page_4

Free 3M Microfiber Electronics Cleaning Cloth - Fast Camera Store
Answer 3 questions and submit your info for a free

When you submit you will get thank you page and a pop-up for facebook app. You can ignore it.

Fast Camera Store Info:
Serebryakova, 10
129343 Moscow
Russia

EU office:
In de Tarpen 39, Gate 4

22848 Norderstedt
Germany

US office:
275 Madison Avenue, Office 264
New York, NY 10016