I began with some websites. Those websites are now offline because of a lack of spare time. I know those are archived on archive.net so if you’re interested you can check them out.
The Planet Needs Help
The Planet Needs Help is a website about ecology. This website summarized a lot of ideas to reduce footprint and ecological consequences of our acts. I wrote a lot of articles and folders about this problematic. The website was in French and attracted 4000 people per month.
Live in Music
Live in Music was a musical streaming website. This site was created before Spotify and other current streaming services. We created this website to allow people to share music they like with friends easily and freely. You then get social recommendations based on listened music, gigs attended and albums bought. This website was never publicly launched because of the huge competition in this domain but a beta test was open to 150 people.