The Good Reads website I came across by accident and it is now firmly "bookmarked", as it lets me to have my own page where I can keep a list of my own reading, write a review and share it with others. I recommend it.
Nowadays my main collecting focuses on Postcards - this is what I spend my money on on holiday. I have compiled postcard albums not only of places, but also of themes, mainly cards bought in galleries & museums - art, costume, early advertisements etc. A great hobby - cheap to buy, easy to fit in a case, and lovely to look through. Likewise Bookmarks.
It is just as well I do not have more space in the home, or else it would become a veritable junkyard of bits and pieces. I restrict myself to Blue and White China collection. I don't quite know why is has such an appeal, but it does.