Dennis wrote:
... Some of the more popular NG's
appear on a dozen or so similar sites. I find them a pain as when you are
looking for some information the google results will sometimes be full of
multiple copies of the same thing in these para-sites.
....

Google has a feature to block them. I forget what it's called & whether
it has to be activated, but it works like this: you do a search, click
on a link, and when you go back to the search results, Google has added
a link: "Block all site results". Future searches will not return a
hit for that site.

I use it, but I wish that I didn't have to go the the site & back.
First - I often know before going there that I want it blocked, & second
- I do my site visits in a new tab, so that "back" isn't involved.

Bob