Update: There is a great deal of discussion in our comments about the possibility of this site being a scam of some sort. While I agree that the domain name of the site is fishy, the content looks completely legitimate. (And, yes, I did run through this on my personal computer before passing it on to you.) With the original and subsequent e-mails we've received about the site, I would say it's legitimate. However, I have removed the link to the site pending further verification.
Update 2: After trading e-mails with Austin Harley (yes, through a valid University of Texas mailing address), one of the researchers involved in the study, I am convinced that this is, in fact, a valid project. Of the odd hosting arrangement, he says:
A good friend of mine offered to build a web page for my site and link it to an already functional database he had. He said this would be easier on him than building one off a webpage on the utexas server so I happily agreed since he was really doing me a huge favor. I had no idea so many people were worried about a potential scam or that my site would cause such a stir.
Update 3: To further assure anyone's concerns, I have talked to a member of the UT faculty overseeing this project, who, again, assures me that this is a legitimate study.