MagicBus - Dynamic ride matching and booking for vanpools, shuttles, and other shared transportation
TagSpaces - TagSpaces is an open source platform for personal data management. With TagSpaces you can manage and organize the files on your laptop, tablet or smart phone.
Lyft Line - Shared rides along shared routes, priced for daily use
allTags - allTags is a free, tag based file management application.
Uber - Uber is a website and mobile app that allows you to get a ride similar to a taxi service from your phone.
Elyse - The free version allows up to 30 tags.