Google

 There were a couple of new and useful things I learned about Google last class.  I had no idea there existed a thing as the Deep Web, which Google cannot access.  I also did not know about the Page-rank algorithm and how sites use Page-rank Optimization to try to exploit it, or that Google has a death penalty.  The most interesting stuff, however, was on the practical side.  For instance, now I know that I can use "-" or "+" to force Google to exclude or include phrases.  This will be helpful in future searches.  Another useful tool is the Advanced Search, where you can restrict searches by domain among other things.  Also, I thought it was very interesting that Google caches sites, so that if the site is down for some reason you can still access a version of it; or that you could use it check information from a much older version of the site.  I just wonder how long it will be before people start having it surgically implanted.

Powerpoint

The worst powerpoint I've had to sit through was probably by a professor I took not too long ago who I'll keep anonymous.  They basically lectured from a powerpoint with black letters on a white background which they created a few hours before class.  I know professors are strapped for time, but color would have been nice.  Really, I didn't really care too much because they didn't really use it very often;  it just sort of added to the ambient light of the room.  So, I guess my first two things that I hate would be: black text on white background and not using the actually using the powerpoint.  When they did actually use it it tended to be overly long: say, by about 30 or 40 slides, so that to get through it all they would have to go so fast that I couldn't really write much down.  There would also be a lot of skipping slides due to the time factor.  So, numbers 3 and 4 would be: overly long, and long to the point of having to skip slides to finish.  To add insult to injury, most of the stuff in the presentations wouldn't end up on the test, so number 5 would be irrelevance.  I hope I never do this to anyone.