I have been in Wikipedia since 2006. I'm mainly active in Estonian Wikipedia ( ) and in Commons (where I'm also a member of OTRS team). Some of the attention goes towards English wiki. In total, I've made nearly 70k edits. That involves 800 created articles and 5500 added images, some of them featured.
On the early days of my contributions I often wrote articles related to art (like in ceramics and in graphics), but later there has rarely been any specific focus (some examples on random topics: Nordic economy, Rein Kilk, Pakri protected area, Malusi islands, electrical detonator, World Cube Association, Tartu Ülikool 350, etc). Articles related to the field of study have unfortunately been somewhat rare (but there still are some of them). But then again, many years ago (5+) I've sort of abandoned active article creation as the need to copyedit and expand existing ones is far greater in Estonian Wikipedia.
I created front page design for Estonian Wikipedia (used 2008–2016) and have been involved with adding the weekly information. I've also composed most of the thematic portals in Estonian Wikipedia. I have been involved in the selection process of quality articles and in 2017 I reworked article quality categorization system and set up article quality criterion page. I've also collected statistical information about et.wiki.
I was the founder of Wikimedia Eesti, that is the Wikimedia chapter in Estonia, and a board member there from 2010 to 2012. Since that time I've also given ca 50 lectures about Wikipedia and talked about this topic in media on many occasions. I also belong to Commons Photographers User Group.
I have also organized different meetups for wikipedians.
Outside Wikipedia "work" I was studying genetic engineering at the University of Tartu and doing various other things in many fields. These include organizing international competitions, art expositions, dancing Estonian folk dances, organizing speedcubing competitions or just being entrepreneurial. I'm member of the Estonian Students' Society.
Most of the photo-related activities in Estonian Wikipedia (from different competitions, photo-collecting campaigns, photoexpeditions and getting image donations) are organized by me. I've also contributed to 100wikiDays craze by starting #100wikiCommonsDays. The latest bigger event I was working on was organizing European Science Photo Competition 2015, that will be expanded into worldwide competition in 2017. I've also carried out some article competitions (example 1, example 2). Photography competition I've organized have brought well over 15k images into Commons and expeditions nearly 3k images. Article competitions have involved around 600 articles. I'm now also heavily involved with starting cooperation projects with museums (example).
I look at Wikipedia as an educational project and I think that it should deal much more with education. Therefore I am leading our Education Program in Estonia with universities (that involves dealing with students writing wiki articles, giving a course about Wikipedia and getting image donations from university). One talk about it. But I've done some not-university related education projects as well (example). The University of Tartu is now also our main partner to expand and promote to use of Wikipedia in Estonia. As I'm working to expand university program, then if you have some ideas, research topics, etc on what students could do, then please let me know.
Together with the university we are working on a major project called miljon+, that has an ambitious end goal of getting Estonian Wikipedia among the Wikipedias with over a million articles.
Software development. Together with A. Frantskjavitsius et. al. we've developed mass translation tool and wikieditor Minority Translate and with the help of K. Tappel we have put together rapid feedback tool for Wikipedia – wikiComment. I've also looked into involving university students into MediaWiki software development. So far it has resulted in a bachelor thesis "3D Model Viewer for the Mediawiki Software" by H. Alasi in UT Institute of Computer Science. In 2017 I'll likely be involved with developing some tools, that would help to organize image metadata in Wikimedia Commons.
Some of my images:
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