Disqus would be a prime example of this, but what are other interesting services that can bring static website to life?<p>Outside of littering the site with social iframes, that is.<p>Plugs welcomed! :)<p>EDIT:
Suggested rewording of the question - how to build feature rich dynamic services on low cost vps machines?
Still looking for a "social share" that doesn't suck.<p>Think of it like this, I shouldn't have to immediately pop up a dialog box, navigate to a different page, or stop what I'm doing to share something. I certainly shouldn't have to copy and paste a URL into a shortner and then into something like Twitter.<p>Apart from that, something like Disqus's comment recommendation/voting system, but applied to divs on the page. Instantly apply some javascript magic to static content.<p>There are a few other ideas along those lines, and it suprises me daily that there aren't more javascripts that can be dropped into a static page and enhance the semantic content of the page.<p>I guess something like Parse would help here too, a lot of time building an independent script for any of these is spent on the backend, which could be abstracted away with a backend service like Parse.
You can get some pretty cool stuff done with firebase. Its not really providing a service though.
off the top of my head I've used Disqus, Facebook pages, and all kinds of social buttons