MilkDrop - 3D audio visualization plugin, compatible with WinAmp plugin API
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Magic Music Visuals - Fully-customizable and highly responsive visuals for live and recorded audio & MIDI.
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Plane9 - Plane9 is a revolutionary 3d visualizer where you never have to settle for just one view ever again.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.