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The #bookshop kobo.com sells lots of non-DRM eBooks! 
However, they also sell lots of DRM eBooks, all mixed together with the non-DRM, and no filter to sort them out 
This makes it very difficult to look for non-DRM books on #Kobo.
So, to solve this problem switching.social presents the Unofficial Kobo Search page, which lets you find non-DRM books available on your country's Kobo site:
https://switching.social/unofficial-kobo-search/
Any feedback very welcome.
@switchingsocial would it be possible to make it a search of all non-DRM ebooks.
@Benjamin
Covering other sources as well as Kobo, you mean?