The programs that I've already used in the past at home, but didn't know them as productivity tools, are Map My Run and Pandora. The applications for these productivity tools seem endless, for business and pleasure.
Some of the tools that I had a chance to look into that seem very interesting are the Nozbe organizing tool, Gliffy and Bubbl.us diagram tool, MyStickies - web based bookmarking, and the Bla bla list task organizer.
As the "green" trend of going paperless continues, it seems that these tools as well as other programs such as Kingsoft Office suite are making this more of a reality. The creation, storage, and sharing of any type of document is becoming more of a reality and mainstream through the Internet.