The open source project that has really stood out to me in terms of funding is vuejs.org who's funding is almost entirely public at https://www.patreon.com/evanyou In the case of RethinkDB I wish they had started Horizon much sooner. Having plugins like for Stripe will make Horizon usable in the real world. I certainly like the goal set for Horizon that it be easy to extend a Horizon app by embedding it in a Node app…
What differentiates Vue from all the other client rendering libraries out there? (Angular, Polymer, React, Ember, Knockout, etc). At first glance it looks kinda like Knockout.
Here's an obviously biased (obvious biased since it's from the creator of vue himself), yet pretty good comparison: https://vuejs.org/guide/comparison.html