Dimka.com is a personal website of Dmitri Zdorov, there is no particular theme here, just a bunch of different pages. The site is up since 1997 and it had ups and downs, I removed links to most outdated pages.
Here are the links to pages that are still relevant:
Dimka Daily Blog (the archive of the old blog)
Bitmap image editing notes (part 1) (part 2)
как пользоваться жж и скачать свой жж на мак
cyrillic in different encodings