While we understand that the name "Howl" evokes the concept of a Wolf, we are not that interested in focusing on the wolf aspect. (If you *must* use a wolf, please make it friendly ... however this should truly be a last resort). Alternatively if you want to use a dog, that could work but don't focus on it :)
Anything which represents groups, instant communication, and location, are all welcome into the logo. Keep in mind that this logo should be clean, fresh, easy to read, and easy to reprint.
Other logos that we like for inspiration:
Keep in mind that unique fonts (think Pulse: http://www.alphonsolabs.com/) are probably the most important over huge icons (like http://phillystartupleaders.org/wp-…0x300.png). Aside from that, it's totally up to you! As you submit logo designs I'll be sure to post regular feedback.
Thanks, and best of luck!!