Most blogs let you leave comments, but often it's a hassle because you have to log in and/or create an account. This is one of the reasons Google launched "chatback" -- a badge that users can put on any webpage that gives readers a direct link to speak with the author.
For example, click here to chat with me.
Normally, people would put the badge right on their webpage, but I can't do that with our current set up here at ZDNet, so I had to post a link to the badge.
What about spam though? Don't worry, posting your badges online shouldn't be too much of a risk because disabling old badges is one click away. If you do start getting spam, you can disable all previous badges on this page.
This comes only two days after Google added the invisible feature in Google Talk through Gmail -- it definitely makes you wonder how long before a new Google Talk windows client is released.