Here is the list of sites that let people to review their design work.
Concept Feedback: Social networking site for design professionals, development and marketing that allows visitors to give and get feedback from other members.
FiveSecondTest: Visitors have five seconds to observe your work and then visitors comment on it.
Please Critique Me: Here, we can request a review of our work from seasoned professionals.
Creattica: Although only the best products receive feedback, creattica is a good place to share work.
Smashing Forum: The forum of the famous Smashing Magazine is a good place to give opinions and feedback.
SitePoint Forum: Another forum, more focused on development and quality of content.
Notable: Ideal for companies with an area dedicated to quality tests.
ProofHQ: Integrated with BaseCamp is much like Remarkably, allowing the sending of five projects per month free.
ConceptShare: To share videos and flash animations with a limited set of people.
GetSignOff: To share design work with clients, allowing to obtain their views before putting it on the act.
Hope this would be useful to u guys.