A diamond is forever.

Be all you can be.

Friends don't let friends drink and drive.

Good to the last drop!

Got Milk?

Great taste... Less filling.

Have it your way.

I LOVE NEW YORK.

imagination at work.

It's everywhere you want to be.

It takes a lickin' and keeps on tickin!

Just do it.

Look ma, no cavities!

Raising the bar.

They're Gr-r-reat!

This is your brain. This is your brain on drugs.

Time to make the donuts.

We answer to a higher authority.

We deliver for you!

We try harder.

We'll leave the light on for you.

What happens here, stays here.

When you care enough to send the very best.

Work hard. Fly right.

You can do it. We can help.

You're in good hands.

Quoted: A diamond is forever. DeBeers Be all you can be. The U.S. Army Friends don't let friends drink and drive. MADD? Good to the last drop! Maxwell House Coffee Got Milk? American Dairy Council? Great taste... Less filling. Miller Lite Have it your way.  Burger King I LOVE NEW YORK. No Clue imagination at work. General Electric? It's everywhere you want to be. Visa It takes a lickin' and keeps on tickin! TIMEX Just do it. Nike Look ma, no cavities! Crest Raising the bar. No Clue They're Gr-r-reat! Frosted Flakes This is your brain. This is your brain on drugs.  National Coalition for a Drug Free America Time to make the donuts. Dunkin Donuts We answer to a higher authority. Hebrew National Hot Dogs? We deliver for you! US Postal Service We try harder. Avis We'll leave the light on for you. Motel 6 What happens here, stays here. Vegas When you care enough to send the very best. Hallmark Work hard. Fly right. Continental Airlines? You can do it. We can help.  Home Depot You're in good hands.  Allstate

Quoted: A diamond is forever. Mayors Be all you can be. Army Friends don't let friends drink and drive. MADD Good to the last drop! Maxwell House Got Milk? Great taste... Less filling. Miller Lite Have it your way. Burger King I LOVE NEW YORK. imagination at work. It's everywhere you want to be. American Express It takes a lickin' and keeps on tickin! Timex Just do it. Nike Look ma, no cavities! Crest Raising the bar. They're Gr-r-reat! Frosted Flakes This is your brain. This is your brain on drugs. Time to make the donuts. Dunkin Donuts We answer to a higher authority. We deliver for you! We try harder. We'll leave the light on for you. Motel 6 What happens here, stays here. When you care enough to send the very best. Hallmark Greeting Cards Work hard. Fly right. You can do it. We can help. Home Depot You're in good hands. Allstate

What the hell.  I only know a few and probably missed some of those too.

I Love New York - Hillary Clinton

Raising the Bar - Cingular Wireless I believe

the answers:

  A diamond is forever.
(Diamond Trading Company)
  Be all you can be.
(US Army)
  Friends don't let friends drink and drive.
(US Department of Transportation)
  Good to the last drop!
(Maxwell House)
  Got Milk?
(American Dairy Association)
  Great taste... Less filling.
(Miller Brewing Company)
  Have it your way.
(Burger King)
  I LOVE NEW YORK.
(New York State Division of Tourism)
  imagination at work.
(General Electric Co.)
  It's everywhere you want to be.
(Visa)
  It takes a lickin' and keeps on tickin!
(Timex)
  Just do it.
(Nike)
  Look ma, no cavities!
(Crest)
  Raising the bar.
(Cingular)
  They're Gr-r-reat!
(Kellogg's Frosted Flakes)
  This is your brain. This is your brain on drugs.
(Partnership for a Drug-Free America)
  Time to make the donuts.
(Dunkin Donuts)
  We answer to a higher authority.
(Hebrew National)
  We deliver for you!
(United States Postal Service)
  We try harder.
(Avis)
  We'll leave the light on for you.
(Motel 6)
  What happens here, stays here.
(Las Vegas Convention & Visitors Authority)
  When you care enough to send the very best.
(Hallmark)
  Work hard. Fly right.
(Continental Airlines)
  You can do it. We can help.
(Home Depot, Inc.)
  You're in good hands.
(Allstate)