Read this:
http://bits.blogs.nytimes.com/2009/02/24/viddyho-phishing-scam-hits-gmail/?hp"Gmail users who are logged into the accompanying chat service Google Chat, as most are, have been getting messages that appear to be from friends, urging them to click on a Web address starting with tinyurl.com that takes them to a site called ViddyHo. The site asks for the person’s Gmail log-in information and then hijacks the account, sending out chat messages to all of the user’s contacts and spreading itself further."
I got this spam in my gtalk and clicked on the link. But unfortunately I did not sign in. Is my gmail a/c safe???