The East Rand part of Johannesburg is where you'll find the O.R. Thambo International airport, the busiest airport in Africa. The East Rand is where you'll find towns like Kempton Park, Bedfordview, Alberton, Benoni and Brakpan. The region is primairaly the residential area to the east of the city center. Mining was the reason people first settled in the area, and the evidence of this is still visiable in the skyline. The Burma flea market is very7 popular and one of the biggest flea markets in South Africa, and you're bound to find what you're looking for.
The East Rand is a good option when looking for lodging in the city of Johannesburg, as it's in close proximity to the city, as well as being more affordable. Many people working in the city live in the East Rand, and this contributes to the notoriously clogged roads of Johannesburg, and it's advised that you plan your trip carefully, as the roads may not always move along so well.