tedster - 2:24 pm on Apr 4, 2013 (gmt 0)
They offer generalised information at best that you often feel is written by someone who is NOT an expert on the subject, which is often not what you want when you want EVERY detail on a particular ailment.
That usually helps me refine my [medical] query and then get down to that detailed information.
My issue when I begin searching is often that I don't know enough to formulate a really good query. That's when I really appreciate seeing those "big brands" in the results for more general query terms. Those pages may not give me exactly what I want, but they certainly can be trusted to set me on a good path. Sometimes it's the footnotes and references, but sometimes it's just gaining the proper vocabulary. Even Knowledge Base data can do that for me, too.