If you are talking about the gifts that your friends send you, there in your request box. you can accept or decline gifts for all of your applications.
Try Googling: free animated GIFs.
Seenly.com. Gifyo.com for Gifs.
You click "enable GIFs"
Yes, you are able to use both with out royalties.
You can find funny animated GIFs online at the Gif Bin website. New funny animated GIFs are uploaded daily. Once on the website, you can comment on GIFs and sort the GIFs by categories such as most viewed and top commented.
To make a collage of gifs, you can use the AppCrawlr.
Celebrity gifs are available on many websites. Gifs are digital images that can also contain short videos. There are many gifs of popular models.
A good place to find animated GIFS is the website forgifs. Heathers Animations is another good source for animated GIFS as is Animation Factory and AnimatedGif.
Gifs.net has a wide variety of Gifs ~ See related link below .
JPEGs are not video files, only pictures. GIFs are a series of pictures set to "animate," you probably mean GIFs. As for converting GIFs to AVIs or MPGs, I'm not so sure it can be converted directly (as in, choose file, click button, convert, done type of thing).
tumblr have loads
To make gifs smaller, you can reduce the dimensions (width and height), decrease the number of frames or duration, lower the frame rate, and limit colors. There are also online tools and software specifically designed for compressing gifs.