I recently signed up for hubski, which is very similar in style to HN, but uses a tagging system so you choose to follow only the topics you are interested in.

I recently signed up for hubski, which is very similar in style to HN, but uses a tagging system so you choose to follow only the topics you are interested in. http://hubski.com/ http://hubski.com/ So far it has been very good signal to noise...