There's a site called
Www.GoSwim.TV and I've noticed there are a lot of recent pics and vids (the latest were posted on YouTube.Com in November and December of 2011) of guys swimming in briefs.
Here in San francisco, there's a running/jogging track that runs around the waterfront and I see a lot of guys out in marathon style short running shorts too.
The shorter look in men's athletic wear is definitely making a come back!!!
CD