Josh Eaton

On display, duplicate whitespace (including unicode whitespace characters) in between sentences or elsewhere within posts will be replaced with a single space. Useful if multiple contributors use different styles for sentence spacing or as a catch-all for any unintended extra whitespace.
This enables consistency in a blog with multiple contributors where one writer uses double spaces between sentences and another uses single spaces.
No modifications are made to the post content itself, the replacement happens when the content is displayed to the user.

Remove Double Space

Remove duplicate whitespace in between sentences or elsewhere within posts. Useful if multiple contributors use different styles for sentence spacing.

Eric Alli

The Google Typography plugins allows you to use any <a href="http://www.google.com/fonts" rel="nofollow ugc">Google Font</a> for any text on your existing website without writing a single line of code. In the Appearance > Typography settings page, simply add and customize as many fonts as you’d like, then apply it to any existing HTML tag or CSS selector.

Google Typography

A simple plugin that lets you use and customize (in real-time!) any fonts from Google Fonts on your existing WordPress site.

Remove Double Space vs Google Typography