Protoss tech tree
This one surfaced at Blizzcon (to be followed by the Terran tech tree). Text descriptions by Gamespot.
New structures included the null circuit, dark obelisk, phase prism, and twilight council buildings which all tied into the new units. We tried our hand with as many of them as we could build and were intrigued by what we played. Null circuit buildings are one part of the equation to let you summon the observers to be constructed.The dark obelisk allows you to make dark templars, and phase prisms let you do create the mighty colossus, a killer land unit shown previously. The twilight council lets you create immortals. In addition the stargates let you summon the new phoenix and warp ray craft as well as the old standby, the carrier.
Here's a couple of guides to help with your Starcraft - build orders, maps, units, tactics.

April 3rd, 2008 at 12:15 pm
what is that “DRAK OBELISK”? someone can talk to me about it!?…Thanks!!:P
October 10th, 2008 at 7:55 am
The Dark Obelisk is what allows you to warp in a Dark Templar instead of only needin a Templar Archives. I also think that you now have to build somehting other than a cyber core to get your Immortals (Dragoon replacements) will most definately add another aspect of strategy into your gameplay
November 16th, 2010 at 4:31 pm
in, a long time for me were a few. Well okay. I need it one of my school projects, lucky it has the same subject as the one here. Thanks, have a good one.
November 30th, 2011 at 11:24 am
cyber monday toshiba review…
[...]Starcraft 2 » Protoss tech tree[...]…
December 1st, 2011 at 10:48 pm
Letmewatchthis…
i admire what you have performed right here. i like the piece where by you say you are carrying out this to give back again but i would think by all the responses that is operating for you as nicely. do you have any a lot more data on this?…
December 20th, 2011 at 1:32 pm
Hey, i believe you visited my site so here i am!.I am looking for ways to add things to my blog!Is it ok if i use a few of the things i saw here?!