Quite a few people in our school system, as well as readers from all over, now have blogs. At some point, bloggers will have a document or a PowerPoint presentation that to share with students or the whole world (which on the Internet is really the same thing).

Problem: How can I post a document somewhere?

Answer: Google Docs

Google Docs is a free service which allows you to upload Word documents, Excel spreadsheets, and PowerPoint presentations. You can allow others to view them. You can allow selected other people to even change them. This video explains the concept: