I found the wikipedia article to be pretty good...Romanian (or Daco-Romanian; obsolete spellings Rumanian, Roumanian; self-designation: română, limba română [ˈlimba roˈmɨnə] ("the Romanian language") or româneşte (lit. "in Romanian") is a Romance language spoken by around 24 to 28 million people, primarily in Romania and Moldova. It has official status in Romania, Republic of Moldova, the Autonomous Province of Vojvodina in Serbia and in the autonomous Mount Athos in Greece. In the Republic of Moldova, the language is officially called limba moldovenească ("Moldovan") for political reasons.
Romanian speakers are scattered across many other countries, notably Italy, Spain, Ukraine, United States, Canada, Israel, Russia, Portugal, United Kingdom, France, and Germany.
Omniglot also has an interesting article, but it has quite a number of inaccuracies... These links are noteworthy:
This version of the Latin alphabet was used during the transition from the Cyrillic to the Latin alphabets. It is still used, though mostly in church writings.
Online Romanian lessons
The Letter of Neacşu of Câmpulung (the first written document in Romanian)
Easy Romanian - a collection of Romanian words and phrases
English <> Romanian dictionary
Online Romanian radio
Televiziunea Româna (Romanian Television - includes live online programmes)
Online Romanian newspapers