Description: OpenStreetMap is a free, open-source, crowd-sourced map of the world. Volunteers collect map data using GPS devices, aerial imagery, local knowledge, and other free sources to create and update the map database.
Type: software
Pricing: Open Source
Description: Pearltrees is a free online app that allows you to visually organize, share and discover web content. It acts like virtual corkboards where you can pin content into trees and organize it into topics or projects. It helps you save, organize and share websites, documents, photos and notes.
Type: software