Here's my problem: Rather than hanging around on SO all the time, I would like to create filters, e.g.
"opencv", so that when someone posts a question with these in the taglist or the body of the question, I get alerted by email. Or I get them as an RSS feed, or some similar. You get the idea.
Is there a service that currently does this? If not, would you be interested in such a thing, since I'll be building one for myself.