Avogadro - Avogadro is a free, fantastically easy to use molecule editor.
Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates
ImageJ - and Other Health Care
Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.
ACD/ChemSketch - ACD/ChemSketch for personal and academic use brings the power of our structure drawing package to your home computer.
MailClark - The Slack bot for external communications