Dennis Crowley quotes:

Facebook is about sharing experiences that you've had. Foursquare is more about the present tense and the future tense.

The misconception about Foursquare is that it's just hipsters in New York and San Francisco checking in at bars. It's happening all over the world. I've seen huge growth in Europe, Japan, South America.

My mindset is of the person who is still unsure whether they have enough money in their ATM to go to another bar. I lived that way when I was unemployed, when I was a snowboard instructor, and when I was at NYU. A lot of my personality is stuck in those five years, and I don't know if that's ever gonna change.

We've got over 1 million merchants who have claimed their businesses on Foursquare, running specials and doing other things. What we want to do is take these tools used by the 50-100 national retailers and make them accessible to our 1 million merchants. Then you've got something really powerful.

Forget about where you want to be and go out and build stuff. Dodgeball came from being bored at work... things happen because you make them happen. Stop sketching, and start building.

Between the three, Facebook is literally everyone I've ever shaken hands with at a conference or kissed on the cheek at Easter. Twitter seems to be everyone I am entertained by or I wish to meet some day. Foursquare seems to be everyone I run into on a regular basis. All three of those social graphs are powerful in their own.

Stop sketching. Start building.

It's difficult to build services that are supposed to scale to, you know, 30, 50, 100 million users right off the bat because they got to be kind of tailored down; by definition, they have to be a little bit generic to speak to that large of an audience.

I'm obsessed with the idea of social TV.

People share everything on Facebook. That can be a very good thing or a very noisy thing. With Foursquare, people know that they're getting information specifically about a place, advice about where they are and what they could be doing. It's a very filtered view of the world.

Foursquare makes maps special. We take maps that are blank and put dots on them to help you figure out what to do.

Stop sketching and start building.

Every check-in should mean something. Foursquare should get smarter every time that you continue to check in. We should be able to offer special deals that you may be interested in, and we should be able to offer recommendations for the type of things you should do next.

The best version of Foursquare is the one you don't think about using.

I used to snowboard 30 days a year. Now it's down to eight.

Building a product is easy. But building the company that builds the product is hard.

I didn't really start building my own stuff until I was 24, 25 or so, and even then, I ran into a lot of resistance from, like, older folks, like my bosses at other companies or people in the industry that were like, 'Oh that's an interesting idea, but it will never work.' And, I don't know, I kind of believed everything that they told me.

I keep a notebook in my pocket, and I write down all the stuff we could ever do with Foursquare.

People used to pooh-pooh the idea of a check-in, saying that this wasn't interesting. But when you have 3 billion of those data points, you can take any latitude and longitude anywhere in the world, and I'll tell you what is interesting now, 20 minutes from now, and 6 hours from now.

One of the biggest hurdles about Foursquare is you need to remember to use it.

My buddies are like, 'You live the most amazing life!' Well, I'm working like a dog. I come home most nights and pass out on the couch.

Do what you love and the rest will come.

Hire the best people you can find. This was kind of easy in the early days of foursquare - we hired our friends who were really passionate about the stuff they were building. We have a superstar team not just because their resumes are so strong, but because they've been passionate, thinking about and tinkering in this space forever. Those are the people you want to surround yourself with.

I can think of the number of people who were like, 'I will never get a cellphone because I don't want people calling me all the time. And I will never get on Facebook because I don't want to share that stuff with people. And Twitter, that's not for me.' And this is just the natural progression of things.

If we all went to Google right now, or went to Yelp right now, we'd all get the same results, and that seems really, really broken to me. Foursquare should understand the neighborhoods I've spent a lot of time in, and the restaurants that I went to once but never went back to.

Asking Siri where the nearest sushi bar is - that's not interesting. What's interesting is asking your phone where one of your friends have last had dinner in the neighborhood, or having it recommend a cool paella place in Barcelona because it knows you eat paella all the time at home.

If there's something you want to build, but the tech isn't there yet, just find the closest possible way to make it happen.

Don't let people tell you your ideas won't work.

Build something that fixes something people are having a problem with, and you're lined up for great things.

Don't let people tell you your ideas won't work. If you're passionate about an idea that's stuck in your head, find a way to build it so you can prove to yourself that it doesn't work.

Don't let other people distract what you're doing. There's always haters.

I'm still a really shitty programmer, but I know enough to hack a prototype together.

I used to snowboard 30 days a year. Now its down to eight.

What we're starting to see is that the best apps tend to be the simplest, the easiest to use and the fastest to use

I learned early on not to feel badly about reaching out for help, and not to feel embarrassed about saying that youre in over your head.

People can copy what you've done, but they can't copy what you still want to do.