Disqus : Java Glossary

A logon scheme for blog sites to use and forum managing software. Clients don’t need an account for every blog site, just one at Disqus. It is not quite as clever as you would expect. It first creates separate accounts for each site, then shows all the accounts to the user in the dashboard and offers the option to consolidate them. The Richard Dawkins beta site rdfrs.com uses it.

Advantages

• Filter out spam, trolls and unwanted commenters
• Verified commenter reputations across sites
• Reply to comments through email or mobile
• Edit and republish comments with one click. However, you have to wait about 15 minutes after posting before you can edit or withdraw.
• Has a nice clean look.
• Can mirror posts to Facebook and Twitter.
• Supports full Unicode character set (or at least whatever common fonts support)
• It handles threading by the intuitively obvious technique of indentation.

Disadvantages

• The editor is very primitive: no lists, tables, colour, headings, HTML5 (Hypertext Markup Language v 5), CSS (Cascading Style Sheets). Does support entities and some basic formatting html <em> <strong>.
• The editor does not support Ctrl-Z undo.
• The editor is not WYSIWYG (What You See Is What You Get).
• There is no way to preview how a posts will look after it is formatted.
• You have to go into the dashboard to repeal a message or edit it after it is posted. To get to the dashboard click the icon.

Free to start with no add-ons. per month for professional version. per month for the VIP (Very Important Person) version.

It uses a JSON-based protocol, where participating websites exchange HTTP (Hypertext Transfer Protocol) messages with the Disqus server.