Too much spam comments on blog....how to reduce?

I currently have around 3 to 4 blogs running. I am getting too many spam comments from a lot of people selling stuff unconnected to the websites. However i do not want to make the blog a nofollow blog(meaning i want my viewers to comment and update their web site information). How do i reduce this spam? Please advice!

Thanks in advance,
Sid/chemicalinck

 

Are you using Akismet plugin?

http://akismet.com/

 

Yes i am, but these comments are still pouring in. I am sure these are bot comments as i am not getting any revenue whatsoever and receive easily around 20~30 spam comments a week!!

 

If you are running askimet and it is configured then the auto bot spam should be captured and blocked. it works very well. i have around 20 blogs using Askimet and it filters it all out. If you mean Askimet is not filterig out the spam then it may not be working properly. If you mean you want the spam to stop coming at all then basically you can't.
You could also check settings/discussions/Comment author must have a previously approved comment which means you will need to approve everyones first comment or they don't get through.

 

You can also use a captcha for comment submission to prevent auto commenters

 

I run the "Cookies for Comments" plug in on my blog and it keeps pretty much all SPAM at bay. It requires cookies to be enabled for someone to comment which prevents auto postings by bots since there is no way to store a cookie within the bot. Even if you have good luck with aKismet you should check it out because it keeps the SPAM queue pretty empty.

 

Akismet should do the trick. I also have 2 dofollow blogs and I am getting similar amount of spam. Akismet has caught all of them and I also moderate my comments before publishing. Just use Bulk Delete option on spam comment. I never bother to look at comments caught by akismet as spam. This will save a lot of time.

 

read this article,which is based on your question about spams:
5 ANTI SPAM PLUGINS FOR WORDPRESS 

 

Activate akismet, cookies for comment and add captcha. I installed them it reduced the spam comments greatly.