This news may be a couple of months old but important for freeware downloaders. Tucows.com seems to have realized their mistake and stopped offering installers that bundle 3rd-party offers with software downloads.

On the Tucows downloads site today, you’ll find no flashing ads. No toolbars. No pop-ups,” said Noss. “You might see a few plugs for other Tucows services, but nothing too egregious… and certainly not anything that’s pretending to be a download button.”
More on their announcement post.