This is actually more efficient than Tumblr. When I use Tumblr, I usually just reblog stuff, and then whatever I have to say gets drowned in a sea of other people's content.
Because now I have a nice, orderly blog that actually does the things I want it to do!
I don't know what to post next, but it'll probably be great!
In the meantime, check out my links for my favourite other websites. All of them are excellent and full of valuable information!