| Brown Jr, Preston | 11819 S. Laflin St. Chicago, IL 60643 | $700.00 3/20/2012 | Expenditure Friends of Preston Brown Jr. | Election day - pollwatchers |
| Facebook | 156 University Ave. Palo Alto, CA 94301 | $1.31 1/10/2012 | Expenditure Friends of Preston Brown Jr. | advertising - online |
| Facebook | 156 University Ave. Palo Alto, CA 94301 | $14.21 1/26/2012 | Expenditure Friends of Preston Brown Jr. | advertising - online |
| Facebook | 156 University Ave. Palo Alto, CA 94301 | $11.72 2/1/2012 | Expenditure Friends of Preston Brown Jr. | advertising - online |
| Facebook | 156 University Ave. Palo Alto, CA 94301 | $26.75 2/6/2012 | Expenditure Friends of Preston Brown Jr. | advertising - online |
| Facebook | 156 University Ave. Palo Alto, CA 94301 | $32.81 2/13/2012 | Expenditure Friends of Preston Brown Jr. | advertising - online |
| Facebook | 156 University Ave. Palo Alto, CA 94301 | $23.18 2/21/2012 | Expenditure Friends of Preston Brown Jr. | advertising - online |
| Facebook | 156 University Ave. Palo Alto, CA 94301 | $98.44 2/22/2012 | Expenditure Friends of Preston Brown Jr. | advertising - online |
| Office Max | 2350 Sycamore Rd DeKalb, IL 60115 | $209.50 3/15/2012 | Expenditure Friends of Preston Brown Jr. | Office supplies |
| ONTIME PRINTING | 4206 Warren Avenue Hillside, IL 60162 | $995.00 2/13/2012 | Expenditure Friends of Preston Brown Jr. | Printing |
| Robodial.Org,LLC | P.O. Box 1393 Media, PA 19063 | $350.00 3/19/2012 | Expenditure Friends of Preston Brown Jr. | Telephone polling |
| Union Signs and Printing | 1 S. Eastern Joliet, IL 60433 | $1,050.00 3/5/2012 | Expenditure Friends of Preston Brown Jr. | Lawn signs |
| Union Signs and Printing | 1 S. Eastern Joliet, IL 60433 | $530.00 3/14/2012 | Expenditure Friends of Preston Brown Jr. | Printing |
| United States Postal Service | 433 W HARRISON ST Chicago, IL 60699 | $2,500.00 3/16/2012 | Expenditure Friends of Preston Brown Jr. | Postage |