picture-151The Wall Street Journal has obtained reliably-sourced insider information that Yahoo’s overhaul of its flagship site, a project code-named “Metro,” will go live tomorrow. The new site will encourage users to customize Yahoo with links to other sites, says the Journal:

The biggest change in the new design is a left-hand menu users can customize with links to dozens of potential third-party software, such as micro-blogging service Twitter and Google Inc.’s Gmail, said the people briefed on the plans.

The Journal’s sources said the new design also features pop-up ads built into pop-up content preview windows. The Journal did not say whether or not the new ads are served by Microsoft, as part of an allegedly near-to-completion deal reported by the Journal earlier this week.