> I would love a platform that is just original content (text and original media), and where any links are just text WITHOUT previews.
I've got this vague idea in my head of a WordPress plugin that cooperates with other WordPress installations with the plugin, such that your own blog could turn into a social network. So you publish content to your blog, and your blog pulls content from your friends' blogs with the plugin, and you can all comment on each other's posts and stuff. Tack on some kind of slick mobile app for uploading pictures and the like. I dunno.