It's more like having RSS feeds in your reader for blogs that are rarely updated and you may have forgotten about (although not quite as you have to actively ma

It's more like having RSS feeds in your reader for blogs that are rarely updated and you may have forgotten about (although not quite as you have to actively mark feeds as read). An email (whether direct or via a mailing list) is an interruption (at least to me), whereas a Facebook post just drops off the bottom of the page if I ignore it. EDIT: Sorry, that was poorly worded. The discovery side of it is more like an RSS reader (or maybe a group email). But the key distinction (for me at least) is that I can be totally passive - I don't even need to mark things as read - or I can engage.