Listly by Justin Kemp
Find list of 9 Productivity Tools to Increase Efficiency
UberConference provides a rich visual interface for conference calls. Simple, visual, and free to use, it's audio conferencing done right. Easily set up and join free conference calls, see who is in the conference, who is talking, and use powerful conferencing features.
Get your business a phone system that just works. Built for Google Apps and the cloud, Switch offers the latest VoIP technologies and PBX features that bigger companies have for a very affordable price.
Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
Remember The Milk is the popular to-do list that's everywhere you are: from your phone, to the web, to your Google apps, and more. Used by millions worldwide.
The Kolab.org Community is a Free Software initiative building a unified communication and collaboration system that you can install on your own server. If you don't want to run your own server, consider using hosted Kolab like offered by MyKolab.com.
2.5 million customers use Wave's online small business software to do their invoicing, accounting and payroll. Smart cloud apps for smart freelancers, contractors, consultants and small business owners.
Trusted by millions, Basecamp is the leading web-based project management and collaboration tool. To-dos, files, messages, schedules, and milestones.