I did a quick search of the forums here for "twitter" and didn't find what what I was looking for.
Certain pets only spawn when the weather is right (Silithid Hatchling, Arctic Fox Kit, Baby Ape). Finding out when the weather conditions are right usually means parking an alt in the appropriate location, and periodically logging in to check the weather.
I'm in the Cyclone battlegroup (Azjol-Nerub, Boulderfist, Crushridge, Darkspear, Dunemaul, Perenolde, Stormscale), though like many people, I've got alts on servers in other battlegroups. It sure would be nice to know "it's raining in Jaguero Isle now on the XXX battlegroup".
Could we use twitter to spread the word when the weather is right for certain pets to spawn? It sure would be more convenient than polling with an alt... Your thoughts?