How do I moderate comments on my blog? According to Blogger:
You can find the comment moderation setting on the Settings | Commentstab, along with all of the other comment settings. It's just a simple yes/no option, and looks like this:
Choosing "yes" drops down an email form. This lets you moderate comments via email without affecting your regular comment notification setting. It is optional, since you can always moderate comments through the Blogger interface.
So set the option to "yes," enter a notification address if desired, save the settings, and wait for your next comment. All incoming comments will now go to a special "Moderate Comments" page, which you can find under the Posting tab:
On this page, you will see a list of all the comments that have been created but have not yet been approved or rejected. (This list excludes any comments made by admin members of the blog.) By default, they will be sorted by the time they were created, but you can also group them by their respective posts, by clicking the "Post Name" sort option at the top.
Each line in the list displays the beginning of the comment, the author's name, and the time it was created. Clicking the triangle to the left will expand the row to show the full text of the comment, along with "Publish" and "Reject" links, which you can use to approve or disapprove the comment. You can also select multiple comments and publish or reject them all at once, by using the check boxes on the left hand side and the buttons at the top or bottom of the list.
This entire process can also be done via email. If you entered an email address for moderation, you will get a message for each comment which will contain "Publish" and "Reject" links, as well as a link to the main moderation page for the blog. For example: