Your WordPress blog automatically has RSS feed functionality built into it. This allows people to aggregate data from multiple sites in one location to read a lot of data quickly. I personally prefer reading the data on each specific site however I have a lot of friends who prefer to use RSS feeds and then if they want to they will visit the site for more information. One of my friends recently pointed out that it would be nice if he knew when articles had comments associated to them so if a post had more data related to the post included in the comments he could read them. WordPress by default includes a post feed and a comment feed. The comment feed is not very useful since its a full list of comments and doesn’t organize them by post so if there is a conversation between numerous people in one article its hard to read correctly.
In case you’re not using it already, Google’s web history is a free and handy way to find useful links that you forgot to bookmark. I use it quite a bit when when I google search bugs and installation problems that I need to look up later. It can keep track of (1) all of your Google web searches and links you visited from those searches, and optionally (2) all of your web history (not just Google searches)