To join orkut and start chatting, simply sign in with your Google Account and create your own profile right away. If you don't have a Google Account yet, you can create one now. After you have created your orkut profile, you first have to validate your email address to be able to chat.
orkut is is an online community designed to make your social life more active and stimulating. With the orkut social network, you can keep in touch with your friends and get to know new people. It is also part of the Google's chat network, which means that you can communicate with your friends using iGoogle, Gmail, Google Talk or another desktop client.
Watch a video about chatting in orkut
Voice and video chat in orkut
Not only can you use text chat in orkut, but you can now use the voice & video chat plug-in to have an actual conversation with your friends (seriously, out loud), or even chat face to face over video. The voice and video plug-in is free and easy to install.Chat contacts and history in orkut
Your chat contacts in orkut are the same as your chat contacts in Gmail, iGoogle or a desktop client. Changes to your contacts are synchronized across these services, so if you invite a friend to chat in Gmail and that friend accepts, he or she will automatically appear as a contact in orkut. If you have been using orkut for some time, your chat list will be made up of these contacts, as well as some orkut friends we believe you'd like to be able to chat with. Learn more about managing your contacts.History
If you're also Gmail user, it is worth noting that chats sent and received using orkut are not saved in chat history.