I did a search and outside of some Sorrow's Furnace talk, I didn't find a good discussion on a protection monk specializing in Life Barrier and Life Bond, so I figured I'd start one.

Mo/?
Protection Prayers: 12+1+3=16
Divine Favor: 12+1=13

Required Skills
1) Life Barrier (elite) - (15,2,5,-1) - While you maintain this enchantment, damage dealt to target other ally is reduced by 20...44%. If your Health is below 50% when that ally takes damage, Life Barrier ends.

At level 16, damage is reduced by 52%. Slap this enchantment on the tanks since they should be taking the most damage.

2) Life Bond - (10,2,0,-1) - While you maintain this Enchantment, whenever target other ally takes damage from an attack, half the damage is redirected to you. The damage you receive this way is reduced by 3...25 points.

At level 16, damage is reduced by 32. You'll be seeing a lot of -0 on top of you. Slap this enchantment on anybody and everybody that will be taking damage. If casting Life Barrier and Life Bond, cast Life Barrier first so you take less damage.

3) Balthazar's Spirit (10,2,0,-1) - While you maintain this enchantment, target ally gains adrenaline and energy after taking damage.

This skill is linked to smiting, but extra points in smiting only give adrenaline, so it's equally useful at smiting 0 for energy. This skill combos with Life Bond in that each damage (even zero) you take turns into one energy. This will ease the pressure off of Blessed Signet when your party is in battle.

4) Blessed Signet (0,2,10) - For each enchantment you are maintaining, you gain 3 energy, maximum 3...20.

Since you will be maintaining a lot of enchantments and have negative energy regeneration, this skill is needed to recharge your energy. Cast it whenever possible.

5) Rebirth (10,6,0) - Resurrect target party member. Target party member is returned to life with 25% Health and zero Energy, and is teleported to your current location. All of target's skills are disabled for 10...4 seconds. This Spell consumes all of your remaining Energy.

Since you will be spending most of your time as far as possible from the front line, you can serve as the emergency button in case the party gets wiped out. Be warned if you try to cast this ever because most of your enchantments will fall off when your energy hits zero. If there is any one else with a resurrect spell, let them cast instead while you juggle your energy.

Optional Skills

6) Protective Spirit (10,1/4,2) - For 5...19 seconds, target ally cannot lose more than 10% max Health due to damage from a single attack or Spell.

Use this spell pretty much only on yourself if you are taking damage and need to run away.

7) Signet of Devotion (0,2,5) - Heal target ally for 14...83 points.

A way to do something useful that doesn't cost you energy. It can be used to try to keep your life above 50% to maintain Life Barrier.

8) Vital Blessing (10,3/4,2,-1) - While you maintain this Enchantment, target ally has +40...168 maximum Health.

You can use this enchantment as an extra buffer when someone is about to die to give the healing monk more time to react.

9) Reversal of Fortune (5,1/4,2) - The next time target ally would take damage, that ally gains that amount of Health instead, maximum 15...67.

Another useful way to prevent someone from dying.

10) Mend Condition (5,3/4,2) - Remove one condition from target other ally. That ally is healed for 5...57 health.

Another active spell to do if you get bored casting Blessed Signet.

11) Mantra of Inscriptions (0,10,20) (Mesmer) - For 30...78 seconds, your Signet rings recharge 25...45% faster.

Pretty much used just to get Blessed Signet to recharge faster so you can get energy quicker.

12) Symbiosis (5,5,60) (Rnager) - Create a level 1...8 Spirit. For creatures within its range, for each enchantment on a creature, that creature's maximum health is increased by 27...125. This Spirit dies after 30...126 seconds.

Well, maybe you can cast this if you take some attribute points away. However, it doesn't matter if another ranger even casts this. I've heard this useful in Sorrow's Furnace where you load up the tank with enchantments and pump up his health quite high.

Strategy
Your main job is to stay in the back and maintain your enchantments so the party can negate a lot (over 50%) of damage. Cast Balthazar's Spirit on yourself to set up your energy harvesting. I prefer to cast this first because it's the last thing that I want to drop if I fail to maintain my energy. Cast Life Barrier on the tanks who will be taking the most damage. This ensures they take less damage. Cast Life Bond on everyone, if possible, or else the ones most likely to take damage. You want that damage redirected to you in order to charge Balthazar's Spirit. Be sure to spam Blessed Spirit whenever possible because once you get to negative energy regeneration, you need to keep that energy as high as possible. If you are close to running out of energy, don't cast anything new. Use a weapon switch to a 15/-1 wand and focus for an extra energy buffer if needed. Drop some enchantments if needed (usually Life Bond on casters). Stay well behind the caster because you don't want to take any damage (or else Life Barrier will fall off). You'll pretty much be staring at your energy bar the whole time (as opposed to staring at the red bars in the party window). If you let your energy fall to zero, you'll take a lot of time putting the enchantment back up, so don't let it happen in the middle of a battle. Use one of your heal/escape spells when you get into trouble. If you are worried about enchantment stripping, lay some cover enchantments or have your healer cast healing breeze on top of your enchantments. If in the middle of battle, your energy is very high, and the team is in trouble, then consider helping the healer out with Reversal of Fortune/Vital Blessing/Signet of Devotion/Mend Condition, but don't get yourself in trouble and start taking damage or else you'll either lose Life Barrier or lose all your enchantments because you died.

http://www.guildwarsguru.com/forum/showthread.php?p=756612#post756612