Google Feed API

Google has released a Feed API that allows you to pull down items from RSS and ATOM feeds in JSON or XML formats. It deals with all the peculiarities of the syndication formats and one would imagine is reliable and up to date, being Google (though it must be said that Google Reader is known to be a good 20 to 30 minutes behind Bloglines for updates.)

This API though should be of no concern to Millifeed, Newsgator, Attensa and co. This is because the API is specifically conditioned for AJAX usage. It is meant to be used for sites who want feeds in their sidebars or tickers. It is likely that Google would cut your API access if they detected you using it for powering a major feed reader or aggregation platform.