As we all know one of the best ways to have a good group is to have a good tank, on this issue i will put up for a paladin's tanking tactics, if you have any you would like to share or to add just post it in.
Ok first off these are the Talant build i would sujest to any paladin tank leveling or going to do groups, but i will say your dps is shockingly bad so have a dps set rdy.
http://www.worldofwarcraft.com/info/classes/paladin/talents.html?tal=0505000000000000000005005133503021520215010520000000000000000000
ok with the right set up of talants we can begin the tactics for tanking as a Paladin.
Ok first off dont be afraid to tell the dps to not attack untill the first tic of concrecration has stopped but some ppl dont listen so be ready to take agro of them. Second allways have Righteous Fury active as this with the improved verson u gain 90% more threat with holy damage. So normaly with concercration at level 70 does about 95 damage per tick, so this would give 95 threat per mob under concercration but with the extra 90% you gain about 84.5 more giving you 179.5 threat every tick. Now for the buffs you want to give all the dps Salvation it reduced their threat by 30% dont worry if they complain no matterwhat u do u will annoy ppl it's the rule of thumb but if they get to hit things and not die it's all good in the end, Also you either want Blessings of kings or Blessings of Sanctuary as this gives more holy damage so more threat every time u block.. Ok now for the atatck based holy damage i usually use Seal of Righteousness as this allways deals holy damage as the other one that stacks does not it is random if it is cast on the mob so it is not as reliable. Also if u can judement Crusader first so more holy damage, then judgement Righteousness when it gets to below 10 seconds or as often as you can if u get agro hungry dps.
For the pulls you want to use Avengures shield it's a range spell it slows the targets down and does threat so if the dps do start to attack u got a bit of time to rescue them. Also go round a courner so if there are any casters or range they come to you, put a concercration down so were u fight u will gain more agro, try to keep them in the area or it will be a waste of mana.
I think that is every thing but if i have missed anything out let me know and i will add to this.