Here is a website where you can look up various processes, and try to determine what they are:
http://www.answersthatwork.com/Tasklist_pages/tasklist.htm
If you don't get results there, try a Google seach on the items in question. Many times, they will come up in discussions on various forumns, and you can use them to determine what you have.
If you google a process name and it doesn't come up with something, anything at all, I'd be very suspicious...alot of malware/adware use randomly changing random filenames to help avoid detection.
Any items in particular you are concerned about?