AMPLI.FI - Live online music community. Twitch for tunes.
Music Memos by Apple - An app to capture your song ideas
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Krue - Twitch for music: live streams from amazing musicians
Cardsmith - Capture ideas and collaborate in real-time
WordPress - WordPress is web software you can use to create a beautiful website or blog. We like to say that WordPress is both free and priceless at the same time.