Twitter @reply: Twitter update (a tweet) that is directed to another user in reply to their update. An @reply will be saved in the user's "Replies" tab. Replies are sent either by clicking the 'reply' icon next to an update or typing @ username message (e.g., @user I saw that movie too).

Internet bot, also known as web robot, WWW robot or simply a bot is a software application that runs an automated task over the Internet. Generally a bot will perform tasks that are both simple and structurally repetitive at a much higher rate than would be possible for a human to accomplish. One of the largest uses of bots is in web spidering or automated script fetches to analyze files and information from web servers.

Rich Site Summary: is a format for delivering regularly changing web content. Many news-related sites, weblogs and other online publishers syndicate their content as an RSS Feed to whoever wants it.

Twitter - Re-tweet Thanks (Thanks for the re-tweet)

Responsive Web design is the approach that suggests that design and development should respond to the user's behavior and environment based on screen size, platform and orientation. The practice consists of a mix of flexible grids and layouts, images and an intelligent use of CSS media queries.