How to promote your cause on Twitter and Facebook (without being annoying)

A reader recently posed this question: I'm training for the NYC Triathlon with a group that raises money for the Leukemia & Lymphoma Society. What is the etiquette on soliciting people through Twitter or even Facebook to get donations? Is there a way, without breaking any major etiquette rules or harassing people, to help with my fundraising?

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<p><a href="http://www.physorg.com/news157917336.html">How to promote your cause on Twitter and Facebook (without being annoying)</a></p> <p> A reader recently posed this question: I'm training for the NYC Triathlon with a group that raises money for the Leukemia & Lymphoma Society. What is the etiquette on soliciting people through Twitter or even Facebook to get donations? Is there a way, without breaking any major etiquette rules or harassing people, to help with my fundraising?</p>