By default, Feedburner limits ping services to 11 maximum. They are Technorati, My Yahoo, Bloglines, Newsgator, Google’s Ping Service, Ping-o-matic and 14 more options. What if you want to use them all instead of just the 11 services allowed?
I recently realized this when I made a separate feed subscription for each category in HomeBiz Recource.
For each category, you can have each 11 ping services. So let’s say you
have 2 categories with their own feeds and 1 main feed for the main
blog, you can have more ping services! 
Here’s some example:
http://www.homebiz.bukiki.com/feed —>11 services, 6 default + 5 optionals (service A, B, C, D, E)
http://www.homebiz.bukiki.com/category/blogging/feed —>11 services, 6 default + 5 optionals (service F, G, H, I, J)
http://www.homebiz.bukiki.com/category/quicktips/feed —>11 services, 6 default + 5 optionals (service K, B, H, D, A)
So if you post an article in the blogging category, Feedburner will
ping to the 6 default services plus A, B, C, D, E, F, G, H, I, J. Am I
right?
