It was way too hard to create an RSS collection that can be easily shared (more here: http://peterwatts.net/post/27254383527/shared-rss-is-that-so...)

Does anybody know of better alternatives?

In Google Reader, you can click the arrow on a folder and select "Create Bundle" to create a "Bundle", which is just a link other Reader users can use to add the feeds to their subscriptions. It also creates an OPML file though, which can be imported into most RSS readers.