The document discusses several tools and techniques for online collaboration and communication including blogs, wikis, Google Docs, VoiceThread, Skype, Ning, Delicious, ePals, and Twitter. It provides brief descriptions of how each tool can be used, whether it is easy or more advanced to use, and whether content is public or limited to a specific group. The document contrasts easier but more limited tools like blogs, wikis, and Slideshare with more versatile but complex tools like VoiceThread, Splashcast, and Ning.