del.icio.us This seems to me to be the greatest thing for assignment preparation and general subject reference and should save a lot of time in the future. There is a discrepancy in the different tags used but provided that several tags are used I think this will not be a problem.
Technorati I feel that this will be more and more necessary as more and more blogs are created.
I am finding these lessons are taking more and more time as exploration leads to exploration! It is all so interesting.
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