Hard things are valuable; easy things are not so valuable. Reaching the mountaintop is rewarding because it is hard. If it was easy, everybody would do it.
Evan WilliamsTake a human desire, preferably one that has been around for a really long time Identify that desire and use modern technology to take out steps.
Evan WilliamsEvery major communication tool on the Internet has spam and abuse problems. All email services, blogging services and social networks have to dedicate a significant amount of resources and time to fighting abuse and protecting their users.
Evan Williams