But they DID say "like" Google. So, I assumed the site was equally famous, and so it would be confusing.
If you simply found a name you like, and the existing site has nothing to do with the topic of your site, and the existing site is not widely recognized by the public - then there isn't much chance of confusion and you aren't likely to run into a trademark problem.
The only question then, is, are the extra o's (or whatever) confusing.
You are going to lose some people just because they aren't going to remember exactly how many of the repeated letter there are in the domain name.