Facebook messaged the 4,600 fans of the FacebookPages Page with helpful hints on how to make your presence on Facebook go viral (by messaging all of your fans, for example). A key piece of advice? Use Facebook Ads:

Many businesses, from leading global brands to favorite local bands, are enjoying tremendous impact using Facebook Pages for free viral marketing. Check out some key strategies from the most successful businesses on Pages:

1) Regularly adding engaging and useful content
2) Letting fans participate in the conversation
3) Expanding their distribution with Facebook Ads

We’ve collected some of these winning strategies—along with the nuts of bolts of how to create and manage a Page—into an Insider’s Guide to Viral Marketing

The pdf (embeded below) was sent to everyone via a box.net URL. Box say they were unaware Facebook would use them for distribution of the document.

http://www.docstoc.com/docs/wrapper.ashx?doc_id=520148&swf_url=http%3A//content1.docstoc.com.s3.amazonaws.com/Facebook+Insider%27s+Guide+to+Viral+Marketing.pdf.swf&showrelated=0&showotherdocs=0&showstats=0&enableFullScreen=1
Facebook Insider’s Guide to Viral Marketing – Get more documents