I really like the challenge thing on GoodReads and that alone keeps me over there.
But I've seen a lot of fun bullet journal layouts with shelves of books to fill in as you go. Maybe I'll just get enough pages of that to equal my reading goal for the year? Then every time I finish a book I can write the title and color it. Ooooh.
I also picked up an actual paper journal to record my thoughts on books without having to worry about editing them into a review that makes sense.