I don't do a lot of endorsements on my blogs.
Oh, I do it from time to time, but not very often and when I do, I do my best to make it something I really, truly believe in. Regular readers will know that I often share free resources, and, sometimes, those have paid options. Most of the time, I share those for the free options only, because that's all I've used and I kind of hate pimping stuff that I haven't actually at least tried out.