and here is another blog site from wessex author Bob Sommer, he is really good at this and writes some great stuff:
When readers download Where the Wind Blew from our digital content site, donations will be made to the Francis D. Sommer Memorial Fund for Homeless Veterans. So again, for $5 you can accomplish two important things: read a good book and contribute to a good cause. Download one of my books and the donations will go to animal rescue workers to help with gas for transport, food and vet care. Each of our authors can specify where they want proceeds from their ebook sales to go, and that could change from time to time but bottom line, we are trying to fix our broken world bit by bit which is perhaps all any of us can do.