Digital garden is a metaphor and a practice for a digital resource such as a website, usually managed (“grown”) by one person. Its content is usually placed not chronologically, but in a different way. Incompleteness of content units such as articles is pretty common. An unfinished article is a sapling, and the webmaster is a gardener.
A digital garden is a sort of a personal website.
See цифровой сад for more information in Russian.
Some gardens and personal wikis:
Agora aggregates digital gardens.
Heh nice the digital garden metaphor makes an appearance in Free, Fair and Alive