Free Apps with 'User generated' feature
AlternativeTo is a website which lists alternatives to web-based software, desktop computer software, and mobile apps.
YouTube is a video-sharing website that allows users to upload, view, and share videos.
Wikipedia is a free, multilingual encyclopedia project supported by the non-profit Wikimedia Foundation. Wikipedia has 17 million articles (3.
Mapping software and API service with satellite imagery, real-time traffic, panoramic street views and much more.
OpenStreetMap (OSM) is a collaborative project to create a free editable map of the world.
Waze is a social GPS navigation app that allows drivers to build and use live maps & real-time traffic updates to improve their daily commute.
eBay is an auction website where you can buy and sell electronics, cars, clothing, apparel, collectibles, sporting goods, digital cameras, and everything else.
MAPS.ME offers the quickest offline maps of all the countries of the world. Travel with full confidence: wherever you are, MAPS.ME addresses all your offline mapping needs.
OpenBazaar is an open source project to create a decentralized network for commerce online—using Bitcoin—that has no fees and cannot be censored.
Everipedia removed some of the more annoying aspects of Wikipedia and created a site that is much easier to use. Notability requirements are eliminated and citations / editing are WYSIWYG. There is also a commenting page for each link or file added.
Wikimedia Commons is a media file repository making available public domain and freely-licensed educational media content (images, sound and video clips) to everyone, in their own language.
Find best open source products across all platforms.
Miraheze is a wiki farm (hosts wikis) for free and with no ads, it also provides custom domains, extensions and many other features.
dict.cc is not only an online dictionary translating from English and German to 21 languages.