Google Docs
Sorry, but there are better ways to do this now. This project has been deprecated and is no longer in development. This page will be kept online for archival purposes and in case anyone is still interested in the project despite being no longer maintained.
The PixoPoint Google Docs plugin for WordPress is still in development. It adds a shortcode for embedding Google Docs into your site. The first 40 characters of the URL string in the embed code is checked against a white list of known Google Docs URL strings, then the whole string is parsed through a security filter to ensure that no evil code is injected into the site. This plugin is ideal for use on WordPress multisite networks where non-trusted users may need to embed Google Docs.
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Future improvements
Support for automagically converting raw embed code in posts/pages into WordPress shortcodes may be added at some point if there is sufficient demand.