Other
The Big Picture Book of Viruses
This site has a catalog of all known viruses, including a picture of each, structure, family, hosts, and more.
CK-12 Foundation
Ck 12: Virus Replication
[Free Registration/Login may be required to access all resource tools.] How do viruses replicate? In this lesson, students will learn how a virus produces new copies of itself.
Dartmouth College
Dartmouth College: Epidemic: Rna Viruses
A good page devoted to the RNA family of viruses that differ slightly from standard DNA viruses. Discusses the difference and characteristics of such viruses.