Facebook Local - Discover places to go and events happening near you
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Push for Pizza - The easiest way to order pizza. EVER.
Pizza Calculator Smartly - Calculate the quantity & sizes of the needed pizzas
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
The Spoke - A social discovery app powered by the people you trust.