Wordpress does support both. You can make a blog on wordpress.com right now and you get both standards activated by default in the RSS feed. That takes care of

Wordpress does support both. You can make a blog on wordpress.com right now and you get both standards activated by default in the RSS feed. That takes care of half the web ;) (well, it would if it's also true for standalone Wordpress installations, which I don't know). And all relevant readers support at least PuSH. This is really not a standard problem, and I doubt the concept itself is part of the adoption problem. No, not having a way to subscribe when stumbling over an RSS feed was the main problem in my eyes, and the existence of a feed not being highlighted in browsers anymore. Firefox dropping support was not only an act of treason against the free web, it was also very effective in making it very hard for new users to understand how to use RSS. Not that chrome is any better. Here lies the problem, and that's where it could be solved. Add into browsers an icon when a site has an RSS feed, and let that point to a foundation managed site that points to RSS readers, where users can select their favorite. I'm 100% certain that would have a huge effect on adoption numbers. As this comment thread shows very well RSS is not dead at all, but it's not in the mass market right now and that could be changed easily enough.