To find specific course material:

• We can start with the World Lecture Hall and then from there the Astronomy, Physics, Chemistry or Elec/Comp Eng pages.

What we find is that these are almost all undergraduate courses, but I expect that the number of entries for postgraduate courses will grow.

For specialist searches (e.g. in Surface Physics)

• First, we can hit the Net Search button. Then, realising that this is a zoo, you can ask around which search engine is best for scientific work, and to find something involving both surface and physics you chose

• Alta Vista surface+physics, and I scroll through to find bits of my course at #24 out of almost 200,000 entries, not bad, but what are all these entries?..

• Alta Vista surface+physics+course, and bingo! There are around 27 entries, including 13 of my own starting at #5, 6, 8, 9 and 10: impressive searching. But note, these can be quite out of date- my new web-address has not yet been found by the 'bots'... Also the number of hits one gets varies each time you ask, and the adverts are starting to get really quite annoying and time-wasting.