I'm pretty sure you can find the rules for ranger animal companions in the Character Builder. I remember looking for them, finding them either in the CB or the Compendium, thinking that what was online had to be incomplete, looking at the full rules in Martial Power and realizing there was nothing in the book that wasn't online.
On topic: I'm cautiously optimistic about Essentials. I'd like an update to the rules that incorporates the errata. I'd like to see MM1 monsters beefed up to MM3 standards (although I don't think that's what we'll get). I'm curious to see how WotC tries to balance classes with no dailies.
On topic: I'm cautiously optimistic about Essentials. I'd like an update to the rules that incorporates the errata. I'd like to see MM1 monsters beefed up to MM3 standards (although I don't think that's what we'll get). I'm curious to see how WotC tries to balance classes with no dailies.