I saw someone else comment, but I can't find the thread at the moment, that they see some words on mtnbuzz pages highlighted. I see the same thing. Some pages but not others. Someone replied to the effect that "mountainbuzz doesn't do that", but, it appears that the buzz does do this type of advertising. So its not spyware on your PC; I just spent awhile figuring that out
After spending quite a bit of time running spyware scans, and researching how those hyperlinked words redirect (like through koonzie.com, which mcafee says is a "safe site"), I realized that clicking the "?" on one of these hyperlinked words goes to a site saying its "Vibrant In-Text Advertising", and that "Mountain Buzz is one of thousands of premium websites that deliver Vibrant In-Text Advertising for companies such as Microsoft, Visa, IBM, and Toyota across the internet."
For example, the following thread, post #8, has the following words highlighted in blue, and they are hyperlinked advertisements. If you hover over one, it brings up a little window advertisement:
I opened the same thread in Internet Explorer 9, and slightly different words were highlighted. But sometimes I'll reload the page, and nothing is highlighted. So its pretty random.
I am relieved to figure out its not spyware on my newer laptop; I guess its no big deal. It does seem like a strange way to advertise, to randomly highlight a small percentage of words on the website; such as advertising "Parks", "tickets", and govt "Grants" on a thread about "I like to wave at the jet boats from the groover."