I'm a huge believer in doing research. And I love it. The problem tends to be that I'll be writing along and think, "Hmmm. What river would he be near?" or "Would 'Whole Lotta Love' have been released by then?". So then I stop and look up whatever I'm pondering about. Which would be okay if I stopped at the one thing. But inevitably, a comment on the page I'm looking at brings up another question and off I go again. Three hours later, I haven't written another word.
Lately, I've tried to put in brackets where the missing info is and make a note to myself in my handy-dandy notebook to look up whatever it is I need at that point. Seems to work okay, although I still feel the pull to go look, right now.
Today I had some free time at work which wasn't long enough to do any real writing so I did some research on a book that may be the one after TNN or it may be the one after the one after TNN. In either case, I found some great stuff that I'll already have at hand when I get ready to write. One less interruption during the process.