Avatar YouTube 's Joomla Youtube module allow to display YouTube or Vimeo video on website. Joomla Youtube Module is very easy to use. Just install, add youtube or Vimeo, and ready to show.
Compatibility : Joomla 2.5 & Joomla 3.x
The Avatar Slide Skitter is a Joomla slideshow module & Joomla slideshow plugin. They are based on the Skitter library. Skitter is a JavaScript image slider framework built on top of the jQuery with various beautiful effects

Grid 3 is ready for Joomla 2.5 and Joomla 3.0. Joomlabamboo realized this template on Bootstrap Framework + T3 Framework V3 and optimized it with Zentools, which allows you to target image sizes to your device. Its layout is very flexible and comes with 23 preset styles. The included Zen Social module display your favorite social networks as font icons. You can use it for your online portfolio or your personal website.
MiniK2 allows you to create thumbnails, titles and a introtext of your content by the use of Masonry Effect. You can also display thumbnail images as a portfolio or present your content in a news ticker. Overall this free Joomla extension combine a lot of features with nice effects. TemplatePlazza developed MiniK2 by the help of JQuery Masonry, Quicksand and Thumbnail Proximity. The download is free. MiniK2 works perfect in Joomla 2.5 and Joomla 3.0.