I just submitted my novel to an independant publisher and part of the submission guidlines was to ask for an example of the 'blurb' that you would put on the back cover. I found it a tricky but fun exercise that really makes you look at your book in a new way!
You can see what I came up with on my blog. I would be really grateful for your opinions!
Cheers!!
Stu
http://tollesburytimeforever.blogspot.com/2011/11/blurb-i-had-to-write-for-recent.html