zbac Academic Search Complete
zbad Advanced Placement Source
zebo Britannica Academic (formally Encyclopædia Britannica Online)
zeja Britannica Online Japan
zehs Britannica School High
zbeb eBook Academic Collection (EBSCO)
zbgh eBook High School Collection (EBSCO)
zbds:pubk12 EBSCO Discovery Service (High School)
zbds:kids EBSCO Discovery Service (Kids Page)
zbft EBSCO Full Text Finder
zbxh Explora for High School
zbs2 MasterFILE Complete
zbpv Points of View Reference Source
zssd SIRS Discoverer
zusa Statistical Abstract of the United States