One of these is not like the others. Can you guess which one?
Its the first one. ɢoogle.com is not actually Google. Notice how the first G appears to be a capital letter but is the size of the lower case letters. That's because its not actually a G...well...according to web browsers at least. To a web browser it's simple the unicode character U+0262. If you were to enter that address into a browser you would end up redirecting yourself to xn--oogle-wmc.com which is a spam site and most definitely not Google. This, and similar scams, have been appearing in embedded advertisements on many popular sites. When in doubt, don't click.