Have the client hook up with Feedburner. On my Vaspers the Grate blog, in my sidebar, I created a little graphic called "Feeds" and a brief explanation like "get my fresh posts direct delivered to your computer", then I display not only Feedburner, but buttons for Add To My Yahoo, XML, etc., but all going back to Feedburner site where the menu of options greets them again. I also have a link button to Bloglines. I use an Awasu feed scraper that will translate web site code into a aggregated feed, thus scrapes the site for the data, and I suggest promoting feed scrapers as a user benefit, on the client site. Highly recommend: "Hacking RSS and Atom" by Leslie M. Orchard, in Wiley's Extreme Tech series. Excellant coverage of the topic.