California Learning Resources Network

From site:  CLRN makes it easy for you to find the standards-aligned software, video and Internet learning resources you need. CLRN experts have identified, reviewed and organized hundreds of Electronic Learning Resources (ELRs) in a searchable database that allows you to compare key features of selected resources. The Web Information Links (WILs) let you search or browse hundreds of free primary, secondary and reference resources. Electronic Learning Assessment Resources (ELARs) are data management programs that simplify delivery, aggregation and disaggregation of assessment data.