I'm the only one using a computer at the session. A laptop with my notes, and my desktop behind me with the planet the players are at loaded into SpaceEngine (I code them into it myself). I do print handouts on the fly, such as wanted posters, letters, but the notes I keep electronic simply because it's easier to type. Right now for a starmap I have a single hexed print paper for each sector (of which I currently have 3) with each system location and name marked onto it. Each hex is a parsec. I have detailed system information that I have in catalog form made using GURPS Space. All I really want is to be able to easily map all of that information either onto a tooltip style mouse hover, or at least be able to show the name with maybe a color or icon showing political ownership.