MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Guitarix - Guitarix is a simple Linux Rock Guitar Amplifier for https://alternativeto.
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.
GNUitar - GNUitar is guitar effects software that allows you to use your PC as guitar processor.
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.
Ampire - State Space Modeled guitar amp/cab/stompbox simulator.