In 2004, Olena Boytsun founded Young-Expert.com - a chess website for children and youth. The main goals of the Young-Expert.com project were to promote chess among young people, to create communication opportunities for young chess players from all over the world and to involve children with disabilities, especially those with hearing impairments, into playing chess.
The website had been working for 2 years, unfortunately, the materials were not archived. Young-Expert.com has become a prominent project in the chess environment, regularly publishing materials about children's competitions, interviews and entertaining articles about chess. Olena developed the technical description, design and structure of the website, and also worked on the project as the editor-in-chief. The authors, who were mostly young chess players themselves, took part in the project on a volunteer basis.

In 2006, the personal website of chess grandmaster Ruslan Ponomariov was launched. Ruslan was ”the youngest world chess champion" at the time. Olena Boytsun developed the concept of Ruslan's personal brand development, including the technical description and design of the webpage, coordinated the development and creation of materials, including photographs that were specially created for the website design.

In 2008, Olena Boytsun launched a personal blog about chess marketing and PR - "thoughts about how to make chess even more popular". The project was well known among chess professionals and included both theoretical analysis and examples from the Olena’s practice. To some extent thanks to the blog Olena started to cooperate with the Association of Chess Professionals and then worked as the Marketing and International Affairs Director of the Ukrainian Chess Federation. The blog was active until 2013. Having founded the charity "Chess for Children", Olena closed the blog and started to focus on the work of the foundation.
A personal post in the memory of Olena's coach GM Alexander Moroz got saved in the archives of the blog.

Since 2004, Olena Boytsun has published more than 80 articles about chess in such media as New in Chess, Chessbase, British Chess Magazine, Schach, Ladja and others. Olena was accredited as a journalist and a photographer at high level chess competitions, including the World Championships in Brissago in 2004 and Bonn in 2008, the Chess Olympiads in Turin in 2006 and in Khanty-Mansiysk in 2010, the international tournaments in Wijk-aan-Zee in 2004-2006, Sofia in 2006, Dortmund 2004-2006, Odessa in 2004-2008 and others. Olena also regularly published articles about Ukrainian chess players and events in the foreign press in English, German and Spanish.

Olena prepared a series of interviews with all members of the Ukrainian men and women national teams for the 2010 Chess Olympiad in Khanty-Mansiysk. The publication in English was distributed to participants, journalists and delegates from national federations, and became especially popular because of the brilliant victory of the Ukrainian men chess team.

During 2010-2012 Olena Boytsun had been working as the Marketing and International Affairs Director of the Ukrainian Chess Federation. Olena also chaired the UCF's International Affairs Commission and represented Ukraine at the FIDE congresses.

During this period Ukrainian chess players had won the title of Olympic champions (men, Chess Olympiad 2010) and bronze medalists of the Olympiad (men and women, Chess Olympiad 2012), Anna Ushenina became the Women World Champion in chess (2012). Strong national championships among men and women were organised in Ukraine, and the introduction of the national Chess Day was officially approved. Chess news appeared regularly on TV and in the press, and the work with news agencies was established. Special events and cooperation with sponsors were organised with the aim to popularise chess.

Olena also conducted the rebranding for the federation: the old logo was replaced by a new, more modern, one, which is still used by the federation for more than 10 years now, and a new brand identity was developed for the federation and its projects.

On November 1, 2011, the Verkhovna Rada of Ukraine approved the Resolution "On the Proclamation of Chess Day in Ukraine". 277 members of the Parliament of Ukraine voted for the adoption of the Resolution, including representatives of all parliamentary fractions and non-fractional deputies. The annual celebration of the Chess Day in Ukraine takes place on the 20th of July. This day has been also the International Chess Day since 1966. On July 20, 2012, the Marketing Directorate of the Ukrainian Chess Federation organised the first celebration of the Chess Day in Ukraine.

Olena Boytsun was a councillor of the FIDE Events commission and a member of the FIDE Chess Development commission (2010-2014). In 2014, Olena was nominated for the position of the FIDE Vice-President by delegates from 10 European countries, including Germany, Great Britain, Estonia and Finland. Olena was a delegate from the Ukrainian Chess Federation at the FIDE Congresses (2011-2012) and took part in the meetings of the FIDE Presidential Council as a representative of the Association of Chess Professionals (2008-2010).

Olena Boytsun was an elected member of the Board and the Secretary General of the ACP in 2008-2010 and 2011-2014.

One of Olena's areas of work was the creation and update of marketing materials for the Association of Chess Professionals. In 2012, the rebranding was conducted, with the development of a new logo and a corporate identity. Olena oversaw the entire process, from the development of the terms of reference to the opening of the website http://chessprofessionals.org. The website contained a large database of members, internal calculations of the ACP rating and other complex systems. Now the ACP has different web-site, while the logo and a corporate style remained without changes.

On April 2, 2013, the first advanced chess match in the history of Ukraine and the first such match among women in the history of chess took place in Kyiv. The players were the World champion, International Grandmaster Anna Ushenina and Women International Master, President of the charity Chess for Children Olena Boytsun. In the advanced chess participants are allowed to use any computer program to analyse the position. The game lasted 38 moves and ended in a draw.

In 2014, the children book "Babish Gilzi plays chess” by Olena Boytsun was published by the Folio Publishing House. The book presents the basic rules of chess in the form of a fairy tale. You can find more information about the book on the website about Babish Gilzi and his friends at http://gilzi.online

In November 2012, Olena Boytsun founded the charity "Chess for Children" with the aim to promote the game of chess and a healthy lifestyle among children and youth. Olena finances the work of the foundation from her own resources. The fund is known for its projects, especially the Sozonov Award for talented children (Evgeniy Sozonov was Olena’s grandfather and the first trainer) and the program "Chess Ukraine" for clubs and schools. In 2023 the foundation is celebrating its first 10 years in operation.
More information can be found at the Chess for Children website - http://ChessForChildren.org