Does not matter which type of GIF content you wanna post on your Google Plus profile, you can get it on YouTube videos. And you will be happy to know that you can convert the segments of the YouTube videos into animated GIF by following simple steps online.

To convert a YouTube video into animated GIF, Watch the video given below and follow the steps mentioned in it.
HOW TO : Convert YouTube Videos Into Animated GIF
Take advantage of Google Pluses animated Gif support by turning your favorite YouTube videos into animated Gif's
http://gifninja.com
http://www.cellsea.com/media/vindex.htm
Geocitie-size your page!
http://wonder-tonic.com/geocitiesizer