Check if you're red/green colorblind by looking at some of the pics HERE
Red/Green is the most common. About 10-20% of males are colorblind. Females are almost never colorblind.
A few semi-computer/technology related facts I know:
"Uncopyrightable" is the longest word in the English language that doesn't repeat a letter.
"Typewriter" is the longest word in the English language that can be typed using only 1 row of keys.
The work "EWOK" is never said by anyone in Star Wars, Return of the Jedi.
Darth Vader actually says "No, I am your Father" (Not "Luke, I am your Father").
There are supposedly around 85-90 people (I think it was 84 when I last heard) in the USA named 'LOL'.
Some excersice/weight loss ones I know from my days of wrestling:
When you eat celery you actually burn more calories digesting it then you get from the celery itself.
To burn off the calories of 1 M&M you need to walk about 100 yards.
I also heard once that about once a day your immune system kills a cell that would have turned into cancer had it survived.