how do i make my own rss feed?

There is plenty of software out there that can do this for you. If you have a blog and use wordpress it does this automatically.

You can of course produce your own XML file which will be your RSS feed.

http://www.newsniche.com/ is a good resource that explains all about RSS.

http://rssfeederdotnet.sourceforge.net/

RSS Feeder.NET is a free open source desktop RSS feed aggregator which downloads feeds from web sources and stores locally for offline viewing, searching and processing. It is also a rich blogging tool which you can use to blog to variety of blog engines including WordPress, B2Evolution, .Text, Community Server etc. You can be fully MS Outlook® dependent or can run fully standalone. You can also use both at the same time whichever you find comfortable to work with. It does not increase Outlook load time, nor does it make Outlook slow frequently or prevent from closing properly. It is a Smart Client that makes best use of both Local Resource and Distributed Web Information sources.

Download Installer ver 3.3 (Nov 10, 2005)

Download Source Code ver 3.3 (Nov 10, 2005)

u will get the help from feedburner.com