In mid-2002, the term blended learning began cropping up in conversation. At first, blended meant Computer learning with classroom learning. Apologists who had shortsightedly defined eLeaming as computer-only learning talked of combining eLearning with live workshops. Some people continue to define blended learning as a sandwich made of alternating slices of Computer learning and live workshops. More sophisticated practitioners were saying the blend might contain chunks of computer-mediated learning, classroom, lab, collaboration, knowledge management, apprenticeship, case discussion - whatever mix is the best way to accomplish the Job.

Unstructured taxonomies created by users. Anyone can invent and pin tags on objects. An object may have an infinite number of tags. Metadata for the masses.

Formal learning is accomplished in school, courses, classrooms, and workshops. It's official, it's usually scheduled, and it teaches a curriculum. Most of the time, it's top-down: learners are evaluated and graded on mastering material someone eise deems important. Those who have good memories or test well receive gold stars and privileged placement. Graduates receive diplomas, degrees, and certificates.

Informal learning is over the watercooler, at the poker game, asking the person in the next cubicle to help out, collaborative problem solving, watching an expert, or sharing a terminal for eLearning.

Informal leaming often flies under the official radar. It can happen intentionally or inadvertently. No one takes attendance, for there are no classes. No one assigns grades, for success in life and work is the measure of its effectiveness. No one graduates, because learning never ends. Examples are learnmg through observing, tnal-and-error, calling the help line, asking a neighbor, traveling to a new place, reading a magazine, conversing with others, taking part in a group, composing a story, reflecting on the day's events, burning your finger on a hot stove, awakening with an Inspiration, raising a child, visiting a museum, or pursuing a hobby.

Learning is any non-genetic adaptation one makes to interact more effectively with the ecosystems in which one participates.

Learning is any nongenetic adaptation one makes to interact more effectively with the ecosystems in which one participates.

A wiki is nothing more than a Web site where people can write what they want, including revisions to one another's work.