Scramble a paragraph so that the letters of each word get randomly mixed up, but keep the first and last letter of each word in the right spot with this online text typo generator. According to (research?) Typoglycemia is the term that represents the phenomenon that "it deosn't mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and lsat ltteer be at the rghit pclae". Use this free online app to convert any text word, sentence or document to this pattern of preserving the first and last letter of each word while randomizing the rest.
Language researchers might use this online tool to help them continue to study language and the human mind and comprehension. But most people will probably just put twitter tweets or facebook posts in here to mesmerize their friends. Either way this Add-Typos-to-Text formatter can be used online from any web browser.
Typoglycemia is apparently a bit of a meme representing an old email spam chain that talked about research that was never done, but with a truth to it nonetheless, and fun results.