Is there somewhere I can learn all the technical capablities available to enhance my blog . XML .,RSS,putting stuff on your on my blogs to make it attractive? . Even to add links to other other business sites.

What do you want to achieve with your blog? Detailing that will help answering how to enhance it.

For starters, yes you need RSS (or an RSS flavor), and to make it attractive I suggest an original template (not one coming with any standard packages) and an original URL.