I've never used a personal website for something like that, personally, but I think my input could be helpful either way haha. I find that theory notes, I remember the most of if I take them by hand. For ~internet stuff~ I prefer doing (and reading) some king of journal in the target language. If you don't know a word, it can be enriching to try to find a synonim, or to look it up and take notes of that, and it's also really fun seeing the progress one makes. From saying "my name is X, I'm from Y and it's sunny today" to being able to express nuanced opinions. It's really rewarding when I do it myself, and really fun to read when someone else does!