Buyers may be reading too much into simplified school rankings offered on real estate sites, paying premiums of $200,000 or more for homes served by schools that score only slightly better than other schools in the same school district, the San Francisco Chronicle reports. School district officials in San Mateo County, Calif. say real estate professionals are part of the problem, because they rely on test scores and school ranking sites to help sell homes. They're holding an event next month to give Realtors a better understanding of what qualities make for a good school. The Chronicle described a "feeding frenzy" for homes in the city of San Carlos, where the school district's four elementary schools all score "well above" the state average. The lowest performing elementary schoo...