Here is a list of websites that make it easy to create funny and viral memes and GIFs.
Flixel: http://www.flixel.com — A downloadable app for MacOS and iOS to create cinemagraphs (repeating videos that showcase movement in only part of the video, somewhat like a GIF). See an example at the bottom of this page.
Gif Bin: http://www.gifbin.com — Allows you to embed many gifs without hosting them on your website. Alexa: 56,624 in December 2016.
GifGifs: http://www.gifgifs.com — Offers the following tools: GIF resizer, GIF optimizer, GIF crop, GIF reverser, Rotate GIF, Add text to GIF, JPEG optimizer, PNG optimizer, Split GIF. Also offers free animated GIFs. Alexa: 102,051 in December 2016.
Heather Animations: http://www.heathersanimations.com — Includes animated gifs, backgrounds, and textures that you can download and use for free: All the animations on this website are free for you to take. But I need help to keep the website going. Please would you send me a donation to help. Alexa: 183,068 in December 2016.
Img Flip: http://www.imgflip.com — They claim to have the fastest meme generator on the planet: https://imgflip.com/memegenerator. They also allow you to create animated GIFs from video files or YouTube: https://imgflip.com/gifgenerator. And to make pie charts: https://imgflip.com/piemaker. And demotivational posters: https://imgflip.com/demotivational_maker. Alexa: 3,975 in December 2016.
Imgur: http://www.imgur.com — A directory of the most viral images on the Internet, sorted by popularity. Meme Generator: http://imgur.com/memegen. Video to GIF: http://imgur.com/vidgif. Alexa: 53 in December 2016.
Venngage: https://venngage.com. Motto: Make Infographics That People Love. Download for free: The Most Epic Guide to Social Media Visuals: https://venngage-wordpress.s3.amazonaws.com/uploads/2016/12/SMV_eBook-Final.pdf.
Know Your Meme: http://www.knowyourmeme.com — A website dedicated to documenting Internet phenomena: viral videos, image macros, catchphrases, web celebs and more. Allows you to explore new and popular memes. On some memes, they make it easy to create a new version of the meme yourself. Alexa: 1,881 in December 2016.
Meme Creator: http://www.memecreator.org — Make and share memes. Alexa: 120,279 in December 2016.
Meme Creator exists to help users of the interwebs make memes online to express their creativity and ideas through images. You can select one of the existing funny meme templates on our site or upload one of your own to make a new meme. Meme’s often trend when they’re funny or have a message that people can relate to. Usually people generate memes to express their ideas, opinions or humor related to current events in the news and media whether on a local or international scale. It’s always important to share your memes on social networks, that way your idea can spread and be seen by the world.
Meme Generator: http://www.meme-generator.net — Allows you to make simple memes. Alexa: too new to be ranked in December 2016. Check out this Book Marketing Meme I created using this generator: http://bookmarketingbestsellers.com/dont-be-a-fool-market-your-books-today.
Meme Maker: http://www.mememaker.org — None of the links on this website work anymore (as of December 2016). Alas. Alexa: 14,849,306. Check out this Month of Thanksgiving Meme I created using this generator: http://bookmarketingbestsellers.com/the-month-of-thanksgiving-mother-teresa-on-joy.
MemeBase: http://memebase.cheezburger.com — A directory of popular recent memes. Alexa: 2,659 in December 2016.
Memegenerator: http://www.memegenerator.net — Allows you to create new memes based on popular meme characters and images. Alexa: 10,506 in December 2016.
Memes Happen: http://www.memeshappen.com — Features popular memes and the ability to create memes. Alexa: 303,452 in December 2016.
Net Animations: http://www.netanimations.net — Animated gifs, moving clip art, sounds, songs and videos from from various forum, search and web sources. Alexa: 157,549 in December 2016.
Online Image Editor: http://www.online-image-editor.com — This online editor allows you to resize and crop animated GIF images, add text to animated GIFs, make a GIF with their GIF maker, add borders, add a mask or picture frame, and more. Also allows you to add speech bubbles, rain GIFs, glitter text, and more. Alexa: 14,660 in December 2016.
Below is a heart cutout featuring my 1001 Ways to Market Your Books, Real World Edition that I created with this online editor.
PicGifs: http://www.picgifs.com — Lots of great GIFs you can download. Plus you can create your name with various dazzling alphabets (like my name below). Alexa: 62,703 in December 2016.
Seven Oaks Art: http://www.sevenoaksart.co.uk/make-animated-gifs-online.htm — Lots of animated GIFs to share, plus the ability to create snow GIFs and more. All GIFs created by one person. Cool! Alexa: 397,437 in December 2016.
We Know Memes: http://www.weknowmemes.com — They also feature viral memes, lists, videos, GIFs, and comics. Alexa: 49,435 in December 2016. They used to have a meme generator but it wasn’t working in December 2016.
The just for fun GIF on the right is from GIFbin . . .