YouTube has announced two developments: the expansion of their HD player and a test of three new landing pages.

Here are the details of the announcement:

HD on YouTube

Starting today, if you click the “watch in HD” option below any HD-enabled video, the video will automatically play in widescreen – so you can find out where the hell Matt is in glorious HD, if you so wish. As part of this launch, we have created an HD Videos area where you can browse videos uploaded in the HD format. In anticipation of your questions – including how to encode your videos to take advantage of this new feature and how to avoid the dreaded “windowboxing” – we have prepared an FAQ in the Help Center. Hopefully you’ll find any technical information you need there, but feel free to post follow-up questions to the YouTube Community Help Forums.

New Video Landing Pages

News, music and movies are huge categories on YouTube and as a result it can sometimes be tough to find exactly what you’re hoping to watch. In a bid to smooth your path to the perfect video, we are testing three new video landing pages: youtube.com/news, youtube.com/music, and youtube.com/movies. The news page will be populated with breaking stories from around the world as well as news drawn from the Google News service; music will feature rising videos alongside playlists dedicated to different genres; movies will showcase some of the most popular short and full-length movies on YouTube today. We’ll keep a close eye on how these pages perform with a view to rolling them out in other categories.

These may not seem like major announcements – but they position YouTube to be the destination site for news, music and movies.

As YouTube pushes high-quality mainstream videos via these new landing pages, though, will user-generated video be pushed to the side?