Using Google Docs w. Your Students

I did an in-service today was partly on how to use Google Docs, Google Presentation (PowerPoint), to create collections (folders), how to upload and how to link to one's student presentation tool (ie Blackboard, Google Sites, Edublog, etc.).  The advantage of doing this is that once you have the link set up, you can just make the change within Google and will never have to re-upload the document or presentation again.