You may think it sufficient to bookmark a site that relates to your ancestor. Alas, the Internet shifts, changes, and sites can disappear.
I recommend saving a screen shot on your computer or using a clipping app like Evernote. Even that isn’t enough insurance. What if your computer crashes. Go one step further and print a paper copy to keep.
Last year I’d found a great website about Belgians in the Civil War. It included half a dozen men who were in my great-great grandfather’s company and several were in Andersonville with him. The profiles on this site were most informative and probably written from the pension files of these individuals.
I made a few notes and saved a link, thinking I could always go back for more details later. Unfortunately the profiles are now gone from online. If I want that information, I’ll need to order their pension records. That’s an expense I wasn’t planning on, so I’m really regretting that I didn’t print all that information when I first found it.
I’ve included a few notes about him and other enlisted men of Company G on a web page where I was stockpiling links. From now on, I’m also printing out all that I find.