There are 5 other members in the startup and they work in different locations. We are looking for online meeting software suitable for a small distributed workforce. It has to support at least voice chat and screen sharing.
Which online meeting software do you recommend?
How about Google+ Hangout.
We use it in many occasion for user group meetups.
It's free. It supports screen sharing. You can add up GoogleTalk messenger as well.
We usually use Skype and Teamviewer - skype for the voice chat, and with Teamviewer you can even share screens for free!
Stick with the basics: Skype for voice chat and Join.me for screen sharing.
buzzumi.com is audio and video chat in the browser and you can share pdfs and youtube videos.
Disclaimer: I work for them.