I mostly look at user reviews over anything else when it comes to reviews of games.
I like to pay attention to bigger review sites because, as someone who wants to go into media journalism, I like to pay attention to all sources of review.
However, I feel like you get a lot more honesty and realism from someone individually reviewing a game. Take our site for example, even though we get copies of games, that doesn't ever influence our decision in score.
I trust all of our reporters and staff's opinion over most bigger sites, but I still think the bigger sites are something you should pay attention to.
TLDR, Pretty much everywhere, mostly more indie sites/user reviews.
EDIT: oh I completely forgot news.
I actually find 99% of my news through twitter feeds. The other 1% is just me searching for it.
Twitter is easily the best source of all information though, it's quick tidbits that allow me to follow a multitude of sources of consistent updates in the industry.
Apart from friends and the 'temp, Metacritic. While it's not perfect ("all follow the herd, hurhur"), it does give a fairly large amount of sites to watch. If the title is niche, Google is your friend.