1. Create a poll, 2. Forward the link to the poll to the participants, 3. Follow online what the participants vote for. Free. No registration required.

drop.io has rich phone functionality. simply hit the 'drop it' button to setup a free conference call line (not recorded) and a voicemail line (recorded). use them as you please. you can even have your voicemail automatically forwarded to email addresses, twitter accounts, itunes (for podcasting), or your blog.

Bubbl.us is a simple and free web application that lets you do brainstorm and mindmapping online. Create colorful mind maps online, Share and work with friends, Embed your mind map in your blog or website, Email and print your mind map, Save your mind map as an image.

conference.io is an applet from drop.io specifically tailored for real time collaboration and file sharing. Create a conference.io drop in one click and you are instantly in a rich media 'chat' feed. Invite participants (as many as you want), use all core drop.io settings, collaborate and exchange files at will in your browser, third party chat client, and mobile. Ideal for events, and with our free conference call function, teams working remotely.

pictures, video, audio, and documents all appear in-line and can be previewed and downloaded. Files can also be emailed in, and voicemail can be recorded on your conference.io's private line. All files are stored (up to 100mb for free) and can be viewed in a variety of ways.

Laconica is a Free and Open Source microblogging platform. It helps people in a community, company or group to exchange short (140 character) messages over the Web. Users can choose which people to "follow" and receive only their friends' or colleagues' status messages. It provides a similar service to sites like Twitter, Jaiku, and Plurk.

Free Desktop Sharing and Remote Control. Establishes connections to any PC all around the world within just a few seconds. You can remote control your partner's PC as if you were sitting right in front of it. Mac and Windows. Free for non-commercial, personal use

Want to share ideas? The world's coolest brainstorming and mind mapping software has now joined the open source community.

Easy to use, web-based to-do list. Get organized, stay motivated, and be more productive. Use folders, subtasks, due-dates, priorities, tags, contexts, goals, notes, time estimates and other information to easily organize, search and sort through your tasks. You can get Toodledo on your mobile phone, in your email, on your calendar, in your RSS reader, via IM, and integrated directly into your web browser. You can even print up a special foldable booklet that will fit in your pocket.

Vanilla is a free open-source, standards-compliant, multi-lingual, fully extensible discussion forum for the web.

Free Desktop Sharing and Remote Control. Establishes connections to any PC all around the world within just a few seconds. You can remote control your partner's PC as if you were sitting right in front of it. Mac and Windows.

Wiki hosting providers (wiki farm), 100% free, with free domain mapping, and AdSense integration

The key goals of The Commons on Flickr are to firstly show you hidden treasures in the world's public photography archives, and secondly to show how your input and knowledge can help make these collections even richer. You're invited to help describe the photographs you discover in The Commons on Flickr, either by adding tags or leaving comments.

Create your own social network, quickly and easily. Elgg allows you to take full advantage of the power of social technology with elegant, flexible solutions for organisations, groups and individuals.

Always-ready free program that instantly captures and shares images and video…from your computer to anywhere. Mac or Windows.

Create a form in a Google Docs spreadsheet and send it out to anyone with an email address. They won't need to sign in, and they can respond directly from the email message or from an automatically generated web page. Creating the form is easy: start with