I used to play a blue-green control deck I named Turbo Opposition. I basically made it because I wanted to play Turbo Stasis, but that was no longer legal in standard. This was just after Onslaught block had come out, if I remember correctly.

The idea of the deck was to use green's mana creatures to accelerate the deck and get out Static Orb, Opposition and one or more Howling Mines. I would then use the one-drop mana-creatures to power the Opposition, shutting down the opponent's mana and then just sit back and watch him deck himself due to Howling Mine. I also experimented with things like Dreamborne Muse to speed up the process.

Here is an approximate decklist from memory:

23 Lands:
3 Flooded Strand
3 Windsweapt Heath
2 City of Brass
8 Island
7 Forest

14 Creatures
4 Birds of Paradise
4 Elvish Pioneer
4 Llanowar Elves
2 Dreamborne Muse

Other spells
4 Counterspell
2 Memory Lapse
4 Opposition
4 Trade Secrets
2 Words of Wisdom

8 Artifacts
4 Howling Mine
3 Static Orb

Note that Trade Secrets is actually pretty decent in this deck, at least when it works, because the opponent will never get an opportunity to play those extra cards. Also, it is good fun to play Trade Secrets against a player who doesn't know your deck. Quite often they will draw a riduculous amount of cards, just to deck themselves on the next round after you follow up with Dreamborne Muse.

Unforutnately, I only got to play the deck once at a tuornament (and a FNM at that), because 7th rotated out of standard shortly after I had built the deck, taking away Opposition and Static Orb.

Now, I'm not suggesting that this is the ultimate in blue-green control, but at least it's my take on that particular combination.