I've been asked by a former coworker (from my recently-ended summer internship) to do a sidejob for him. The job is to set up a feed that updates users' Twitter accounts and to construct two Facebook applications, which simply display some basic information pulled from the main website. That's about all I know about the job and even with that to work with, I don't know how much to quote him. How much does this kind of job sound like it's worth?

My background in this kind of stuff is limited, but I worked with a Facebook application in my summer internship and I operate my own website, both of which utilize PHP, MySQL, and Flex. I'm a college student and new to the industry so it's hard for me to give a reasonable rate quote.

How much should I ask for?