Ten years into the new century, people are still trying to find the web 2.0 tools that best facilitate collaboration--one of the fundamentals of 21st century learning. As the number of tools continues to grow, and fuzzy terms like "cloud computing," "hashtags," and "synchronous live platforms" are introduced into the lexicon daily, even the most tech-savvy educators can have trouble determining which technologies have a role in a collaborative academic environment and which are simply new toys. In this article, three top ed tech consultants--Steve Hargadon, John Kuglin, and Leslie Fisher--select three web 2.0 tools they believe are ideal for fostering collaboration in teaching and learning. The result is a compilation of technologies that can "do things of value" in the instructional and professional development realms, and in both the traditional and the virtual classroom.