Fighting Spam and Helping to digitise book
Recently, I started to received hundreds of spam comments through my blog. I am frustrated with the email notifications sent by wordpress. I took alot of time deleting the emails and spam comments from my blog and mailbox. The spammers often target wordpress blog comments or even email forms.
I try to search for solutions to remove the spam. The most popular is Captcha using distorted words as authentication mechanism to fight spam. I experimented with 2 implemetation of Captcha – SI Captcha for WordPress plugin and WP-reCaptcha plugin.
SI Captcha for WordPress has audio playback and nice interface but I have problem displaying the Captcha images on my server. I prefer WP-reCaptcha as it is easy to incorporate to my mail form and blog without any hazzle. Some more it has the novel idea of helping to digitize books while using the Captcha for security purpose. The distorted words we entered in the reCaptcha are used to digitize books. So, we are not wasting our time typing irrelevant words but actually helping the world. Such a genius idea! 
I encourage people use reCaptcha as anti-spam measure on their blog and email form from spam.
