Very cool! I'm stuck on level 7 because it seems that the script isn't editable anywhere. Related note, the color scheme for highlighting editable lines might want to change, because "black on dark maroone" doesn't exactly jump out.

Love that you're auto-gisting solutions. That was clever - I presume you are browsing through searching for the common description tag? I also like the API popup, although I didn't see it until I got stuck on the (uneditable) level 7. I verified this because $('.editableLines') == [] in console! Perhaps this is a very fancy meta-game that you can only win with a pull request? :)

OwnCloud + DO or Linode, and your backup problems are solved (more or less).

I don't know what this reference is about.

I recently finished an in house visualization project in which the original spec called for D3 to be used. This is no particular fault of D3, but for whatever reason, the d3 visualizations that our freelancer built (mostly simple chart types) was not only not working on pre-IE8 (which was to be expected), but was iffy in certain edge cases for IE 10.

So in a panic, I rewrote half of the suite in Google interactive charts, my goto solution for quick easy interactive charts. It was ok, except that GCharts has always had an awkward API, but even worse, was very hard to customize.

So in another fit of panic, I tried out Highcharts

http://www.highcharts.com

In a single day, I was able to rewrite all of our visualization code AND make them look like the photoshop specs...and the charts worked flawlessly across browser testing and apparently will work with IE 6.

I've known about highcharts for awhile, but have never seriously used them. Maybe it's because I'm an elitist douche who finds their homepage to be too reminiscent of early-2000s PowerPoint and Excel design...yet in terms of software, I could not be any more pleased with them.

Again, not a knock against D3, which I will continue to learn for the bespoke stuff I want to build. But in terms of interactive common charts, Highcharts is pretty slick...I'll likely never use Google Charts again.

edit: I should emphasize...the problems we had with D3 were not inherent to d3. But as you probably know, D3 is not well suited for common charts out of the box. I am only saying that if the situation does not call for D3, then Highcharts may work just fine for you right out of the box. Highcharts also has an extensive API for bespoke work but I did not venture into it