Forum Romanum
Outlines of Roman History: Conquest of Southern Italy
Read about Rome's final consolidation of all the towns on the Italian peninsula, from the Rubicon to to the Strait of Sicily. The war against Pyrrhus gives us the ironic statement of a Pyrrhic victory.
Other
United Nations of Roma Victrix: Pyrrhic War
This huge UNRV site on Roman history devotes a page to the Pyrrhic War, defining the major players and tracing the course of battles and related events.