By default, blog posts are open to comments from visitors to the site, so a degree of management may be required. Move to the Options section and click the Discussion tab. It is possible to block all comments by unticking the third box. In the lower portion of the page, control can be exerted over who can post comments. Moderation can be enabled to help prevent spam and the requirement to fill out a name and email address offers another safety net. Below this, opt to force comments that contain a particular number of URLs to be automatically held back for moderation an email notification will be sent out by default.

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The Comment Blacklist box can be used to block comments that include specific words, email addresses or URLs, or have been sent from a particular IP address.
Trackbacks are a way to show people when you've written a response to something on their blog this can be used as a valuable publicity tool. Pingbacks work in very much the same way with less information sent to the other blog. Trackbacks and pingbacks can be enabled on the Discussion tab. When writing a post of your own that replies to a blag post elsewhere, scroll down the page and expand the Trackbacks section. Enter the address of the