Mirco-articles [1] are short (3000-5000 characters plus references) academic text that are longer than a standard abstract but around one tenth the size of a normal journal article.
[1] Tero, H., K. Juhana, A. H. Kari, K. Petri, H. Timo, N. Pirjo, and kki, 2008: Tutkimusparvi: the open research swarm in Finland. Proceedings of the 12th international conference on Entertainment and media in the ubiquitous era, ACM.