APAStyle.org — Official APA site with examples for documenting electronic resources.
Pensacola State. College APA Guides to:
APA Formatting and Style Guide — From the Purdue Online Writing Lab (Owl) provides information on format, in-text citations, citing of sources and much more.
APA Documentation of Electronic Sources— Valencia Community College addresses electronic resources which students at Florida community colleges are most likely to use for research purposes.