XML – RSS one of the most popularly used format for feeds, to track the updates from particular website. Google reader a famous reader among netizens which helps to read and organize the updates via RSS or XML feeds.

Now Google reader accepts feedless websites where you can subscribe by adding the website name. Google reader automatically creates a new feed for the particular website and keeps tracking on the updates from the website.

You can also customize feeds for particular page in a website. For instance www.google.org/products.html contains list of products available. If you like to get update from the particular URL just add it to subscription in your Google reader.

Note: Google reader will not support all the languages except English for feedless websites.