I was just recently at our library and found this cool website that is an archive of magazine, book and newspapers articles. You can look up just about any subject and find something on it. Its called INSPIRE. You can find it at www.inspire.net. I looked up Jack Benny just out of curiousity. I found some interesting things but you sometimes have to wade through to find it. I even found a Saturday evening post from 1948 on there about Jack Benny. A lot of this stuff is old hat if you know a lot about Benny but I did find some interesting tidbits. I haven't gone through everything on there but there are some book reviews of books about him, newspaper articles, and a few magazine articles.
Another article I found on there was from 1963 Saturday Evening post and it kinda made me upset. It was interview done with Jack and it made it sound like he was a sad washed up old man. I found so many facinating things on this site.