Yahoo Messenger is a fully featured online communicational tool. It’s setup integrates Yahoo! Toolbar with anti-spy and pop-up blocker, Yahoo! browser services – quick access to Yahoo! Messenger and Sign In from Internet Explorer. With Yahoo! Messenger you can send an instant message, call a computer, call a phone number, send a mobile message or send an e-mail. You can edit your status display and picture or avatar. You can share your webcam or see your friends’ webcams. You can send files and send messages to your friends regardless of their online/offline status, and you can log on using the “invisible” status, so that nobody would notice you are around.