Urology is well represented in the world of FOAMed. I’ve tried to list some of the sites, but watch this space for more.
They also have a great resource which is an adjunct to textbooks for your urology rotation here. They’ve highlighted things which surgeons may ask you over their shoulder in the theatre. Helpful.
UrologyMatch’s Bladder Cancer Corner is also useful.
Here is a good guide to urinalysis.
And some interactive uroradiology tutorials.
Nephrologist Joel Topf has a series of online lectures entitled Precious Bodily Fluids. Fantastic stuff.
Twittersphere: @UrologyQuiz is a #FOAMed devoted to urology. Just use #uroquiz.