One alternative - and this is a self-promotion warning - is to use a product that I helped build that will let you track up to 30 pages for free - It’s called Infominder and you can use it as a single place to keep track of updates to websites, RSS feeds, etc.
Again - it’s free for the first 30 pages, check it out at www.infominder.com.
Just an alternative way to the one suggested earlier. Would love some feedback on it.