From a CNet article on the site:
Task Market, an online marketplace for jobs that can be done on Office applications.
Like Elance, oDesk, and other piecework job sites, Task Market is a marketplace for people with skills and time–and those that need them.
Task Market is focused on very specific, and nontechnical jobs. At the moment, the only job categories allowed on the site are writing, editing, translation, and basic design. Why not programming or scripting or multimedia editing? Because, as the FAQ says, “By focusing on tasks accomplished using applications such as Microsoft Word, Excel, PowerPoint, and Access, Task Market makes it quicker and easier for small businesses to get their job done.”