Hyphens are great!
It makes it easier to read now and if it's for affiliate marketing / something that you mainly just want Search Engine traffic then all the better.
I almost regged one in 2001 but someone was all against it. Then again everyone was scared of .org back then as well.
Things are changing and in 5 years 1,2,3 hyphens will be run of the mill and bookmarking / engines will be so good most people will probably never type the URL in once. What's easier to read from a search result:
Bloggeries-Blog-Forum.com
bloggeriesblogforum.com
yaya I made it easier with the caps on the top but put that to longer examples...
Anyways I'm pro Hyphen; don't discriminate