Raven’s antispam – powerful and invisible fighter against comment spam. No set-up necessary, install and forget.
<h4>Details</h4>
Visitors with enabled JavaScript (99%+) see nothing – no annoying questions, no captcha, nothing. (Users with disabled JS see an additional text-field and a word that must be rewritten into the textfield.)
Note: this plugin is not able to check your trackbacks – to handle trackback spam, it’s necessary to use some other solution. (I recommend to disable trackbacks globally, since they rarely bring any benefit for your readers.) <a href="http://kahi.cz/wordpress/ravens-antispam-plugin/" rel="nofollow ugc">more…</a>.

Raven's Antispam

Powerful and invisible fighter against comment spam.

Scott Smith

Add a simple, modern tool to your posts to allow your readership to reply to any post via Twitter or App.net with a simple click or tap. An @mention is composed to your account with the permalink of the post that is being replied to attached.
Now the conversation with your readers continues using your favorite Twitter or App.net app. Download the Decode Reply Tool today and take a look at the beautiful and modern theme, <a href="https://wordpress.org/themes/decode" rel="ugc">Decode</a>.

Decode Reply Tool

This plugin allows your readership to reply to your posts via Twitter and App.net using a beautiful, simple reply tool.

Raven's Antispam vs Decode Reply Tool