Maybe make this a LinkedIn app? Sign in via LinkedIn, see the companies you worked at as headings. Then, beneath each heading, fill in the projects you worked on? Entries are shared on LinkedIn. It's a way to more clearly articulate to the world the types of things you've done.

Given that LinkedIn is the leading business social network, and given that the users of iWorkedOn clearly have an interest in sharing what they've worked on, wouldn't this be a natural fit?

(BTW: title needs to change. Says "Ask HK" (hong kong!?) :-)