Online Collaboration Resources (for site design/development)

[KaraB]

Hi Everyone,
Was wondering if anyone has used any online sites that allow multiple
people (like a designer/developer & client, or multiple team members)
markup or comment on a site design/development project that's in
progress. I'm looking for something like www.conceptshare.com but for
site reviews as opposed to just image/pdf/single file reviews. I'm
looking to be able to post sites that I'm the progress of building and
be able to have clients draw on them, comment on certain aspects, mark
them up, etc.

If anyone has any suggestions that would be great.

Thanks!

Kara

[Nate Westheimer]

Twiddla

[William Gray]

A combination of Basecamp and/or Campfire might be of use to you.