People go to your web development blog because they want to read about web development. They didn't go there for VPS advertisements. Make a specific page for that so that anyone who wants to know what hosting services you recommend will seek it out and visit it.

Anything else means you're selling your reader's attention to the highest bidder. You're deliberately adding noise to your website and reducing its usability. Also it immediately introduces conflict of intetest: you're associated with the company you're advertising so any positive opinions you might have about their products ought to be taken with several grains of salt.