Otter - Remember, search, and share your voice conversations
YoutubeMultiDownloader - Just like its name YouTube Multi Downloader, it is an online website for downloading the videos of downloading without using any video download and accelerator.
Plutoview - Shared browsing solution for remote group collaboration
KeepVid - A free web application that allows you to download videos
Dead Simple Screen Sharing - Simple screen sharing and audio conferencing software.
ShareTube - Watch YouTube, synced with friends.