The following are some links to Thinkfinity resources. Feel free to add a great lesson or activity you have found.

Learning objects are individual resources designed for teacher or student use, and in many cases can be used by both the teacher and student in a single learning activity. Learning objects are embedded within Thinkfinity lesson plans and other activities, but can also be used independently in a variety of settings both inside and outside of the classroom.
There are two types of learning objects – online and offline. Online learning objects are designed to be used on a computer and in many cases are interactive in nature. Offline learning objects are designed to be downloaded and printed.

This attachment has links to each partner. It is a good starting resources.