Does anyone know of any other free resources like craigslist for New Jersey?

Areas of interest in New Jersey:
Housing
apts / housing, rooms / shared, office / commercial, housing swap, housing wanted, sublets / temporary, parking / storage, vacation rentals, real estate for sale
For Sale
auto parts, baby / kids / toys, barter, books, bicycles, boats, cars + trucks, cds / dvds / vhs, clothing + acc, collectibles, computers, electronics, [...]

What must I do before I can legally operate an online business in New Jersey?

I already have a website for my environmental activism group, and want to sell environmentally friendly products on that site in order to raise money for the website and our groups activities. My girlfriend and I will be forming a partnership, but will have no employees (besides ourselves obviously). Must I register as [...]