Earlier, you needed a Google Account to post a comment here. If you still want to use your Google Account, you'll have to take the longer route, but just once. Use your Google Account to create an OpenID, which is supported by a lot of websites out there.
After you post your comment, you can even publish it to a social networking site if you wish. Thus, you can bring your friends into the discussion too.
You can use DISQUS on your website or blog too. And it's completely free. Though there is a paid version, it appears to be focussed on enterprise users. DISQUS claims that it helps you bring more traffic to your site, and even follow the discussions about your site if they take place elsewhere. Visit their website to know more.
DISQUS is seamlessly compatible with WordPress, Tumblr, Joomla, Blogger, TypePAD, and lots and lots of other services. You can also import your existing comments.
Their website is clear, and installation on your blog is really easy. At least my installation on Blogger was really simple. It took just ten minutes or so. Get started creating your account now!
