Best of luck! Since EV training involves fighting wild Pokemon over and over again I am sure you will have luck!

Thanks, where do you EV train?

In Platinum version, here are my spots:

HP: Route 201. 50% rate of Bidoofs works great.
Atk: Grass North of Oreburgh. Machop are common enough here, and at low levels.
Def: Oreburgh Mine. Geodude and Onix are very common here.
Sp. Atk: Old Chateau. 100% Gastly encounter rate is perfection.
Sp. Def: Water north of Sunyshore. Lots of Tentacool and Tentacruel.
Speed: Old Rod. Magikarp galore!

Sadly, I do not. Tender apologies.

If you are aiming for specific EVs, then yes. It is deathly important that you do.

I finished training a Pokemon at Lv. 10 today and got it to Lv. 26. after the first 3 E4 members.

Time to get my 3rd gen team ready.. xD

Well yes, because I finished EV Training.

Well basically, my Pokemon has all of the EVs I wanted so it won't hurt to get other EVs. It probably has 300-ish now. Too hard to explain right now but you''d understand later if you gut the hang on it.

Im sorry but thats totally false. I've done this numerous times with scizor. They should fix that.

I never switch out or use Exp. Share. The Pokemon I fight for EVs are all at reletively low levels, so my Level 1's have trouble at first, but once they level up its not a problem. Sweepers and walls need Speed and HP, respectively, and there are level 2 and 3 Bidoofs for HP, and Magikarp for Speed. I start out on them, and I have gained enough levels to fight either Gastly for Sp.Atk, Machop for Atk, Geodude and Onix for Def. I have yet to train for Sp.Def, oddly enough.

Bump because another thread was made asking about EV's.

I say this thread should be sticky-ed.

Heh, ur funny!

This may be a little late, but I think this may be helpful:
http://www.serebii.net/games/iv-calcdp.shtml

It's an IV calculator. Just put in the stats, nature, and, if for some reason you already started training it, EV's... as long as you know it.
(My bad! You don't need to put in EV's. Your supposed put in the stats the moment you look at them.)

Could I share my favourite HG/SS hotspots here?

HP: Go down to Slowpoke Well and surf on the first patch of water you see. You'll only find Slowpoke, which'll dish out 1 HP EV each.

Atk: Head to Mahogany Town and go west, towards Mt. Mortar. Surf again, on the water in front of the cave. There you'll find Goldeen and Seaking, giving out 1 or 2 Atk EVs respectively.

Def: Go over to Pallet Town and surf just past the fence. The patch of grass there is home to Tangela, who give out one Def EV each. However, every so often (Though they're pretty rare) you'll come across a Mr. Mime, so make sure you run from those.

SpA: Like Quad said, surfing in Ilex Forest is the place to go.

SpD: Find yourself almost any patch of water (The water between Olivine and Cianwood is probably the best). Surf on it. Tentacools will give you 1 SpD EV each, and Tentacruel will give you 2.

Spe: I have two places for this, but one's really for higher-levelled. The first is Diglett Cave, where you'll find Diglett and Dugtrio (Duh). Diglett give out 1 Spe EV, while Dugtrio give out 2. Watch out though, because they might have Arena Trap, stopping you from switching out. I only recommend this place for higher-levelled Pokémon or Flying-types.

The second Speed training spot is a great one. Head on over to the Power Plant in Kanto. The grass outside that is home to Spearow (1 Spe EV), Voltorb (1 Spe EV), Raticate (2 Spe EVs), Fearow (2 Spe EVs), and Electabuzz (2 Spe EVs). However, if you go training there at night you'll come across Quagsire frequently, which give out HP EVs rather than Speed.

And that's what I've got! Good luck!

That'll be going in the first post, thanks for the list.

This is a little late but I don't think anyone shared BW Pokemon to EV grind at. (even though it's sort of common knowledge)

Palpitoad- HP (2 points)
Patrat, Lillipup, Pidove- Attack (1 point each)
Roggenrola, Durant- Defense (Roggenrola 1, Durant 2)
Purrloin- Speed (1)
Litwick- Sp. Atk (1)
Gothita (Black Only!), Frillish- Sp.Def (1)

Note- Evolved forms of Patrat, Lillipup, Pidove, and Purlloin will yield 2 points for their stat.

Common knowledge it may be, but doesn't mean I knew it. XD
Thanks for the reference.

This may have been already said earlier in the thread, but in case it's buried somewhere down there, I'll bring it up.

Pokerus is, as its name may imply, a virus that catches on to Pokemon randomly. It's about as uncommon as Shiny Pokemon (if not, please do clarify). It's contagious, so if one Pokemon on your team catches it, they all do. Even though it's a virus, it's actually a REALLY good thing to have.

Each Pokemon has an EV yield toward each stat, which usually goes at most to 2. HOWEVER, if a Pokemon has Pokerus, each EV they get toward a stat for fainting a certain Pokemon is doubled and contributed toward their stats.

Here's one way to look at it-- Magikarp has 1 Speed EV if memory serves, but if a Pokemon that has Pokerus has it, it will recieve 2 Speed EV instead.

A Pokemon that has pokerus will have a purple PKRS symbol on their stat page. Pokerus will go away if a Pokemon is outside the computer with it after a random amount of time. HOWEVER, the effects will continue to last-- it just can't be transmitted anymore. If you give it to a Pokemon you don't use, though, and keep it in your PC, you can keep the Pokerus available to transmit to other Pokemon indefinitely. It makes a great gift to trade across to your friends if you get it, too!

Another way you'll know about Pokerus is if you have your Pokemon healed at the Pokemon center, then the Nurse begins to inform you about the virus, CHECK YOUR TEAM-- you've probably been infected.

This has actually happened to me TWICE before-- on HeartGold version and Black Version.

It's much easier, btw, to get PKRS on Gen III-V then in II, and it does not exist in Gen I.