Did a quick search and I was surprised to see that there wasn't any discussion going on about this bundle!
The original bundle was Swords and Sworcery, Psychonauts, Amnesia and LIMBO, with Bastion as well if you paid the average donation. They also added Braid, Super Meat Boy and Lone Survivor on the 7th June. You get them for free if you had already paid for the bundle. If not, they're available if you pay above the average as well.
I got it, and every single game is fantastic. I finished Bastion the other day, it is such a great game, the presentation is innovative, and the music is top quality.
Only six days left on it, so give it a bit of thought if you haven't gotten it yet! It works the same as the older bundles, you get to choose how your donation is split between the developers, charity, and the company running the bundle.
https://www.humblebundle.com/