Right now I am using Meebo for my live chat needs and it works pretty well because I can respond to visitors through Meebo on my Android phone when I'm not at the computer. Not to mention the best quality, it's free! What live chats do you guys use for your sites?
meebo if you want them all, i've switched most of the people I care to talk to regularly to gchat and use that. Works way better than texting, plus keeps a searchable record from any internet access which can come in handy.
Gtalk is definitely the best for chatting, but I was talking about if you have live chat support on your website. This way people who visit your site can ask you questions and you can provide customer service.
you can find tht service in "liveperson(.)com" as many websites use this for live support in their websites