TP – TweetPress

This plugin automaticaly links all the twitter users that you mention on your posts or pages.

Displays the latest results based on a twitter search. Options include setting multiple search terms and limiting tweets shown.

Allows administrators to disable other user logins.

Login with one account using an existing account from eg. Facebook, Paypal or Google or from one of the many connected webshops.

Plugin that adds your Twitter account details box in your Wordpress site via widget.

Display your Twitter post and in the pages of its website .

This plugin will regenerate all missing image sizes for an image when it's chosen as a featured image for any post. No settings whatsoever.

All the tools you need to integrate your WordPress and Google+.

Add a recent comments widget that shows Gravatars.