I have a blog on my site bdsfinance.com . Iam receiving comments which have http addresses . How do I remove the comments from the blog which are negative . How do i stop the the http type comments from getting on the blog.

Hi Ricardo.

There are different ways for a better spam protection in your blog.

You can ask your commenters a simple math question.
Just add

MathSpamProtection::setEnabled();

Or you can use a SS-Module like http://silverstripe.org/mollom-module/ ,
or like http://silverstripe.org/recaptcha-module/.

Cheers,
Christian

"MathSpamProtection::setEnabled();"

This is a default feature?

Well, yes.

Have a look at the API Docs here: http://api.silverstripe.org/2.4/cms/comments/MathSpamProtection.html

Cheers,
Christian