I Love Marketing:

The 80 best guerrilla marketing ideas i've ever seen http://blogof.francescomugnai.com/2009/11/the-80-best-guerrilla-marketing-ideas-ive-ever-seen/
Best Practices for E-Mail Marketing http://www.icontact.com/static/pdf/Email_Marketing_Best_Practices_iContact.pdf
Top Viral Marketing Videos of All Time http://desktopvideo.about.com/od/webvideosforbusiness/tp/viral-marketing-videos.htm
15 Of the Best Viral Marketing Campaogns http://www.prospectmx.com/15-of-the-best-viral-marketing-campaigns/
Loyalty Programs http://www.crmtrends.com/loyalty.html
5 Stunning Mobile Marketing Camoaigns http://www.simplyzesty.com/mobile/5-stunning-mobile-marketing-campaigns/
The 10 best viral marketing campaign videos http://www.seopher.com/articles/the_10_best_viral_marketing_campaign_videos