Interest in Vanessa Hudgens hasn't tailed off at all since the release of her nude photo, as well as other embarrassing photos. In fact, a check of the Yahoo! Buzz list today shows her at the top of the list (click photo for Yahoo! Buzz list image).
At the same time, she's #2 this week on Lycos' Top 50.
However, Google's Hot Trends list doesn't show Hudgens at all at the time of this writing. I'm guessing Google users are less lascivious than others.