I found the Love Letter Squad while searching twitter to find any recent tweets on #letter and came across this fantastic site. These two ladies in San Francisco have a weekly radio show where listeners can call in and get help writing a love letter. As they explain on their website, the love letters can be to anyone- parent, sibling, spouse, friend, etc.
Janet Gallin and Tresa Eyres reach out by offering workshops, a blog and contact through their website in addition to their weekly radio show which you can listen to by visiting their website. I also watched a five minute television appearance they recently had for Valentine's Day on a local news channel which was linked from their website. They gave some great advice and it made me want to learn more about them and hear more of their listener's stories.
These two ladies met in 2005 and started their radio show in 2006. I will definitely be visiting their website and blog to keep up with these interesting ladies and how they are improving the world one love letter at a time.