It can be found here or by clicking the Chat link in the top right corner under the search box.
Despite the requests for private live chat we have decided to only have a public (viewable by all) chat feature. This is to encourage the continued free sharing of information.
I hope you enjoy this new feature! Keep an eye out for more exciting developments coming soon to AB.C

Regards,
Steven
Please note: The same rules apply to chat as they do to the forum.