I have been told to brush up on my windows/.net web services stuff for an interview. Any recommendations?

Well, if you want the job in wcf, you should brush up. It's not the most popular path, but some companies lean heavy on it and require good devs. Get familiar with wcf and web api 2, both hosted in asp and owin

@Jacques0130 it's a step in the right direction. This is a consulting spot for a company that does government and commercial consulting. I am trying to break into the commercial sector and this is the stepping stone. The government likes microsoft products.