Location, Location, Location
In 2009, CNN reported that more than 4,000 people vied for entrance into a downtown Atlanta job fair. In addition to the downward economy at the time, the event's central location likely contributed to the event's popularity. The mantra "location, location, location" extends beyond real estate. Your career fair location is one of the most important decisions you'll make concerning your event. Pick a centrally located venue that's both convenient for employers and in a high traffic area that will attract many potential job seekers.
For large career fairs, convention centers are excellent options; many are located in bustling downtown areas with highly visible signage. Another option is a hotel conference suite or banquet hall, particularly good for mid-sized fairs. If you're on a budget, see if a school would be willing to host the event in a gym or auditorium.
Make sure that the venue can accommodate a registration area and has plenty of room for exhibitors and for people to walk around without bumping into each other. And take into account the parking situation at the venue. You won't want people to turn away from the fair because they can't find a parking spot.