I am a little addicted to Rhett and Link right now. So here is what I have:
2 Guys 600 Pillows Also look for the forward version, as this one is filmed COMPLETELY BACKWARDS!!!!

Fast Food Folk Song So great. Be sure to watch the whole thing. Also a great lesson for the kids about paying attention!!

Oh, my gosh, those guys are hilarious! I will not admit to how many I watched - must - tear - myself - away!!

Ok, Frogi, I laugh every time I see this one. I think 8th graders will understand the idiotic political humor of it.
The Front Fell Off

You can actually check their other videos for some more funnies.

This one always makes me laugh. Corey Vidal is lip synching but he does it well.
http://www.youtube.com/watch?v=lk5_OSsawz4

So I would love to see what other video's are out there that make you giggle, laugh so hard you cry, or whatever. Please share and help me build up another quarter of fun Friday's!!

I have a handful of videos I enjoy watching. I don't know if they're exactly what you're looking for, but I'll share anyway :D

This video is one of my favorites; short, beautiful, and I think it really gets the message across.

A music video that is just awesome to me. I love music videos that take a great song and do something great to go with it; ones that are just of the singer/band playing on stage or whatever always kind of bore me. And anything that does something artful, like this one, definitely gets my vote.

Awesome stick figure art animated and so fun to watch. Shows that even if you can only draw stick figures, you can still do something truly cool.

A scene from The Matrix with the soundtrack replaced by a one-man vocal multitrack. Just a little silly, but it cracks me up to watch and listen to.

Star Wars fans will probably enjoy this video; it's done by two regular dudes who really love SW and enjoy doing special effects. They choreographed the fight, filmed it, and then did all the special effects. Turned out pretty cool...and spawned a sequel which was even better.

Talent, regardless of what it is, is always to be admired. This is a nifty thing and cool to watch.

I think I have a handful of other videos I would recommend, but of course, I have a horrible habit of watching a video, going 'Oh, that's so cool/awesome/funny/beautiful/etc', and then not saving it to my computer or to my favorites list. :P

-CQ (who is a little disappointed that one of the videos he was going to list, the Nathan Fillion PSA video, isn't available anymore)

2012 Honda Pilot Crazy Train Extended Version The shorter version seen in the commercials doesn't really do it justice. The extended version is just wonderful. I don't quite remember our family car trips like that though ... we were more ... http://www.youtube.com/watch?v=Ghd-xL5gAjc

...why aren't you my teacher? =(
Charlie the Unicorn and anything else by secretagentbob are hilarious, but some of them are kind of violent.
I try to watch a different version/parody of the song "Friday" every friday without actually watching the real one (I forget a lot though) and so far my favorite is Harry Potter Friday Parody. Anything by the Hillywood show is amazing.
KM&CC

I ADORE "the Front Fell Off!" Makes me laugh every time.

Was first introduced to it by 2 high school students who faithfully (and hilariously!) recreated it for the talent show at a camp where I was a counselor a couple of years ago. :-)

A couple of oldies from before youtube.

Alien Song: I will survive

That one still cracks me up!

Not appropriate for kids because it shows 2 brothers yelling and fighting but check it out:

Mother's Day

KuKu