> roughly four providers (Google, Microsoft, Yahoo, AOL).
At least for North America, three. Yahoo! and AOL are already operating under a single company (formerly Oath, now the much more boring Verizon Media Services), and they have "rationalize" (aka merge) their systems.
Sidenote: The Japanese Yahoo! is not related to the American Yahoo! (except it was before early 2000's came along).
At least for North America, three. Yahoo! and AOL are already operating under a single company (formerly Oath, now the much more boring Verizon Media Services), and they have "rationalize" (aka merge) their systems.
Sidenote: The Japanese Yahoo! is not related to the American Yahoo! (except it was before early 2000's came along).