Gazpacho is great in the summer

This is my favorite soup - it's really light and it cooks in just 15 minutes. I've served it to tons of guests and they've all raved about it: http://www.marthastewart.com/336550/15-minute-white-bean-soup

Great links - thanks, OP!

This one goes down well in my family:

http://www.washingtonpost.com/pb/recipes/family-favorite-minestrone/14465/

Ina's roasted tomato soup changes lives.

I know it is summer. But I have just recently discovered how quick and easy it is to make soups and how convenient they are for leftovers. I can share a few we have loved:

Seared Broccoli and Potato Soup - http://cooking.nytimes.com/recipes/1017010-seared-broccoli-and-potato-soup
My toddler ate 3 bowls of this for dinner tonight!

Vegetarian tortilla soup - http://allrecipes.com/recipe/vegetarian-tortilla-soup/
I use fresh onions and peppers and add shredded soy chickn.

Vegetarian chili - http://www.foodnetwork.com/recipes/emeril-lagasse/vegetarian-chili-recipe.html
This is AMAZING. Been making it for years.

I also threw together a soup last week with lentils, bulgur, stock, celery, onions, carrots and a few spices. It was delicious.

Any other suggestions?