steve, one of my colleagues at feedburner, wrote about the new sharing feature in google reader.
it allows users to share favorite items (by “label”) via email or by using a javascript widget that can be placed on sites. i like it (nice and viral), but it’s clearly just the beginning - they need to incorporate a few things to establish google as the sharing platform:
- allow users to subscribe in other readers (you can do that from the email option, but not via the javascript) - most people use My Yahoo, Bloglines, and/or firefox
- leverage important bookmarks from the beta google bookmarks…or better yet integrate del.icio.us :) - reading isn’t confined to RSS apps
- integrate seamlessly with gmail, alerts, gtalk in some fashion - email will continue to be the dominate app for communication and information consumption (newsletters/rss) for quite some time. newsgator and yahoo mail are betting on this.
it’s a great first step, but competition is going to be rough as yahoo and microsoft look to leverage their rather large pools of registered users. yahoo is in an especially good position as my yahoo is the #1 rss aggregator, they’ve integrated rss into the new yahoo mail, they have MMs of IM users, and they own del.icio.us.
additionally, people are already doing this using delicious and feedburner. delicious has JS badges, but we provide feedsplicing and javascript tools (called buzzboost). that way you can promote your bookmarks, blog posts, etc on your site and users can subscribe to one meta feed. my uber feed is a great example as it has my blog entries, my “my web” links and my flickr photos all in one…
anyways, here is a sample of the google js (image, not live):

UPDATE: note jason’s comments from google. this is a beta labs product and should be treated as such. plus, it’s not easy to integrate sharing into the reading environment. the new yahoo mail beta with full-text rss aggregation does allow users to “blog this,” “save to my web”, and email items, but people can’t subscribe to other people’s streams of saved items. so, google should be applauded for this…and, of course, they will continue to iterate…btw, i’d also like a stream of recommended links based on someone’s subscriptions, reading habits, and favorites.