Make a little list of charities, causes, public services, popular content creators, foss projects, etc...
Every day send 5 emails, like the one below... One to each. For example: Kiva, Ubuntu, LinuxFoundation, Craigslist, FreeSoftwareFoundation, CharityWater, Lighthouse, WorldVision... You name it.... Pick YOUR favorites.
When they reply, guide them through the process of getting set up to accept Bitcoin donations. Refer them to http://bitcoinme.com
for step-by-step instructions.
As they embrace Bitcoin - one by one - Bitcoin will make huge gains in credibility, name recognition, and more and more mainstream acceptance.