I know you an subscribe to an RSS feed to get the questions for specific tags. I wonder if there are any tools beside email, like browser plugins to get noticed, as I'm not using any RSS reader.
Well, there's always email: (removed re question update)
You could just leave the page browsing those tag(s) open on a tab somewhere, and it will notify you of new questions in the title bar:
and on the page:
(which you can click to get the new questions)
You can monitor multiple tags this way, for example here's java, .net and python on stackoverflow
IFTTT is always a great tool for this kind of thing. Here's my recipe for getting an email on a new question in a tag: https://ifttt.com/recipes/104384
I came up with this hack. I use the RSS notification alert extension for chrome and add the RSS feeds for the specific tags.