This is the Official LOTRO page from which you can;

• download the game
• get basic info on the game
• get to the forums
• access the market

Discuss all things LOTRO and look for the blue names (Devs) as they frequent the forums to answer questions.

A place where you can buy;

• Expansion packs
• Game time codes
• Turbine points
• Special offers

Turbine has selected a few Twitch users to be “Official Streamers”. Head on over to see what they are doing in the world of Middle Earth (lotro).

Head on over and give them a “like” or pursue the page for the latest news.

Great place to get the most up to date info regarding server downtimes, issues, etc.

Few videos posted by the Devs / Developers.

Not an official source, but lots of great info about the game on the Wiki.