These are my favorite songs about Cannabis/Weed/Hemp.  I'm not saying that these are the the best songs but just some that I enjoy.

Legalize It - Peter Tosh
NO list of song about Marijuana can't be complete with Legalize It by Peter Tosh.

Rebel Music - Bob Marley and the Wailers
This is one is about throwing away marijuana because of a late night road block.  I used video of Julian Marley instead of Bob Marley because I couldn't find any live versions of Bob Marley and the Wailers on YouTube.

Pass the Koutchie- Mighty Diamonds
A Koutchie is a slang for a pipe used to smoke marijuana.

Pass the Dutchie - Musical Youth
A cover of Pass the Koutchie the Song Pass the Dutchie removed all marijuana references (because you can't have kids singing about drugs) and replaced it with food.  A dutchie is slang of Dutch style pots.

Come Around - Collie Buddz

We Be Burning(Legalize It) - Sean Paul
The are to versions of the song. There is the Legalize it version and the radio edit version called, Recognize It. you probably won't see the video because WMG has been removing the video from YouTube.  So watch this Video by David Sides on Piano. http://www.youtube.com/watch?v=bIjb4nLVhDI

Ganja Farmer- Marlon Asher
A song that was inspired by what friends have been going through as being ganja farmers.  The Video is NOT SAFE FOR WORK.

Marijuana - Richie Spice
Marijuana keeps him calmer makes him smarter.

Gimmie the Weed - Jigsy King
Often Mistaken for Buju Banton, as the song says just Give him the weed, the good ganja weed.

Tree of Life - Human Revolution
I considered this the best song about Cannabis. It has about everything you can use Hemp and Marijuana.

Songs Suggested by some Friends on Facebook

Burn One Down - Ben Harper

Because I Got High - AfroMan

Weed Song - Bone Thugs-n-Harmony

Sweet Jane - Bone Thugs-n-Harmony

Blueberry Yum Yum - Ludacris

Marijuana - 1200 micrograms

Rest of my Life - Kottonmouth Kings

Panama Red - New Riders of the Purple Sage

Do you have any songs about Cannabis/Hemp/Marijuana that you would suggest ?

Yea I Know that I'm kinda late with this but here is Rick Simpson's story about how he found his cure for cancer and the reactions of the government and medical organizations. Below is all seven parts. In part 4 he shows how the make the hemp oil.

Part 1

Part 2

Part 3

Part 4

Part 5

Part 6

Part 7

"I'm an oncologist, as well as an AIDS doctor, and I don't think that a drug that creates euphoria in patients with terminal diseases having an adverse effect."
- Donald Abrams, M.D.; University of California San Francisco; San Francisco General Hospital, 2005

Some Cannabis news I found

Hemp Prohibition Does Nothing But Harm Greg Pivarnik commentary on the negative consequences of Cannabis prohibition.

Oaksterdam U teaches weed growing classes.

The first 2 episodes of Marijuana Media Minute. Part 1 Part 2 Even though it is called Marijuana Media Minute they are a few minutes long.

Julius over at The Straight Toke discuss 5 Alternate Ingestion Methods of Marijuana.

The Five ways are :

1. Vaporize it
2. Grind it, eat it.
3. Make tea
4. Make “Green Dragon”
5. Make cannabutter.

I've never heard of Green Dragon before but thats not surprising since I don't drink alcohol.

Extreme MakeOver : Home Edition is have a special "Green" Edition tonight at 8 ET on ABC. I doubt they'd have any hemp products on the show. I'll check it out an see.