Most online video players have heavy code, which slows page load. My Plugin adds only picture of the player, after a user clicks on it, the player code is loaded.
It shows “shortened” links like bit.ly, goo.gl and other link shortering services.
This is my plugin for inserting php code in wordpress. Usually additional code is inserted to functions.php file in theme folder. Add Functions allows you to insert code through admin menu. Code aditor has code highlightning.
Nginx is lightweight and quick http server. It is usually used as a caching proxy for apache or php-fastci. I prefer using php-fastcgi.
Here is howto, which allows nginx to use static pages, generated by WP Super Cache.