DeinWal.de is a political Quiz where you can answer the actual ballots of the Bundestag. In the end you can see which party voted similarly. FAZ,
Spiegel, FocusVice and lots of other news reported about it.
The fully automatic photo book generator takes photos of all formats and automatically generates collages with optimized aspect ratios. Everything happens in the browser. Works best with Firefox, Chrome is a bit slow.