Basecamp is a web-based tool that lets you manage and track projects (or simply ideas) and quickly create client/project extranets. Over 1,000,000 people signed up.
Zoho offers a suite of online web applications geared towards increasing your productivity and offering easy collaboration. Zoho's online office tools include a word processor, spreadsheet application, presentation tool, hosted wiki, notebo...
Rails is a full-stack, open-source web framework in Ruby for writing real-world applications with joy and less code than most frameworks spend doing XML sit-ups
ThinkFree.com, ThinkFree Office is a Web-based, server hosted office suite that allows users to create, edit and share word processing, spreadsheet, and presentation files anytime, anywhere.