Just keep at it.  The more you "Go Dark" on upcoming releases of games, movies... anything - the easier it will be to stick to it.

I won't be able to physically withstand from watching any and all ME3 trailers that are released.

I'm with you on this one, so many more of ME2's moments could have been jaw dropping - if I'd just not spoiled them for myself. 
Like you said, nothing felt ruined but not knowing would have been SO much better. After I learned about the intro scene of ME2 - and then actually played it, I decided I'd try to stay uninformed of ME3's events. Good luck on your end.

My policy of not watching trailers or reading previews and interviews before a game is released, is going to serve me well when it comes to ME3. I've found that avoiding this type of coverage has really increased the impact of games.
 
For example, I didn't know anything about "No Russian" before I played MW2. There were a good 10 seconds there where I was physically unable to move, because I had to process what was going on. Of course I had the advantage of living in the Middle East at the time, far away from the culture that gave a shit.
 
So I fully support your move to go dark. It's better in the matinée, the dark of the matinée.

"It's better in the matinée, the dark of the matinée. "

I really want to do this, because the ME2 launch trailer, as amazing as it was, gave the entire thing away to me. And I do mean pretty much everything. Even small things, such as a split second view  SPOILER WARNING: Click here to reveal hidden content.

Sounds like a good idea but i'm not sure i'll be able to stick to it. I think I might replay ME2 just so I have a good save for ME3.

Im too going dark on ME3 news , all I wanted to know was when  the game was coming out , also there less a reason because we now know they fixed the gameplay , and whatever changes come I dont think it will be as radical so no reason to spoil things before hand .... so good luck in our er ... um darkness :P

To be fair, nothing in that trailer would have really given away anything without having context from previous research. For example:
 

It's a common trend these days for games to "blow their load" way to quickly for the sake of marketing. I'm afair the only way you'll be able to go sark is to put yourself in an ME3 embargo. 

Ya im trying to do that with the new pokemon. Trying to recapture some of the magic of the first time i put gold in and saw all new pokemon and thought that each one must be the rarest in the game cause i hadn't seen it before. Unfortunately a few have been spoiled for me, including the final evolution of one of the starters im pretty sure. I admire your effort and hope that both of us can succeed.

Good luck to you, if you visit game websites much i fear you wont succeed.

I'm so with you. I knew way too much about it.

As much as i would want to not look at anything ME3 related before it come out, it will never happen. Hopefully the trailers dont reveal too much for ME3.

Watching that launch trailer still gives me a boner.

I avoided mostly everything from Mass Effect 2. I didn't even watch the CGI trailer they released. The only thing I really remember watching where the developer diaries that talked about the difference in the classes. That was what got me psyched on it, but I avoided everything else.

 I felt the same way for the first Mass Effect. 
 
   I ended up going dark for Mass Effect 2, aside from seeing the very first teaser trailer (Legion) I saw nothing and to tell you the truth it changed the way I look at games.  For the first time in years I didn't have an idea where the story will go, the characters I will meet, the choices I will make etc. Even the gameplay was a surprise! I had no idea that certain things could happen on the suicide mission and when one of those things happened it was shocking. 

Now,  I don't look up game news sites, watch every single trailer, read the previews; I'm content with the little dribble here ad there; games are more enjoyable this way. It reminded me of the "good old days" when you got a game you knew was going to be good (Mario World) and you were surprised the entire way through.
 
The best way to start is to use a pretty unknown feature on Kotaku the "not:" tag 
For example  kotaku.com/tag/not:bioware/ 
If you use this address anything tagged Bioware wont be displayed on the site. There are a few glitches, I find that specific things like Mass Effect will only work for half the posts. 
 
Good luck!    

I am seriously considering doing this as well. I adored Mass Effect 3, but I did envy my friends shock at the beginning when I had read enough reviews and previews to know that things don't start out well. Furthermore, I felt like I had a decent grasp on the characters (save for Mordin) prior to release. 
 
The problem is that I'm kind of a junkie for anything Mass Effect related, even down to dopey trailers. We'll see how strong I remain.