You (mostly) shouldn't care what technology it is, unless you have existing infrastructure... BUT...
You want to get from Point A to Point B. How many of each of these in Manhattan?
iDoneThis -- Daily email reminder and activity logging
CodeBase -- version control hosting and ticketing
Trello -- very user friendly ticketing
"Of the following frameworks, which do you prefer and why: MVC, Ruby on Rails, Spring, Hibernate, Struts, Zend, CakePHP, JQuery, Prototype, mootools."
"Which restaurant is your favorite: Italian food, Japanese food, Asian food, Oriental food, American food, hot dogs, hamburgers, forks, plates, pots, and butter?"
Tons of great info in here about all the OTHER (non-development) aspects of building your business.