Micropoetry
Micropoetry is a genre of poetic verse including tweetku (also known as twihaiku, twaiku, or twitter poetry) and captcha poetry, which is characterized by text generated through CAPTCHA anti-spamming software. The novelist W. G. Sebald may have been the first to use the term "micropoem", in reference to the poems of about 20 words in length that made up his 2004 work, Unrecounted.