Apache is a free and open-source cross-platform web server software.
HTML5 Media enables video and audio tags in all major browsers.
SoundCloud widget gives you the ability to upload, manage and share tracks.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.
Vimeo is a video hosting, sharing and services platform. Vimeo operation an ad-free basis by providing subscription plans.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.