Alive directory has created a section specially for blogs. Has been watching the directory since it was started, I was always amazed that it’s growing so fast. No doubt the owner is very good at website promotions. Submitting blogs to such a blog directory a is a good practice as it’s one-time payment.
When you list your sites in paid directories, you should do some homework, for example, check the back links, the more, the better. Some new directories gained good PR by renting high PR back links, I would avoid them if they don’t have enough back links to make the PR sustainable.