Google poured some much needed optimism into the markets last week by announcing some stellar third quarter earnings, giving hope that advertising markets around the world might finally be on the mend. Google turned in a Q3 profit of $1.64 billion, with a very respectable earnings per share of $5.13, a 27 percent boost from the same period last year. During the conference call Google CEO Eric Schmidt also declared that the search engine giant would be on the prowl for new acquisition targets, and would consider any company be it large or small.

News like this usually gets analysts all fired up trying to figure out where they will strike first, but Schmidt clarified that Google is primarily interested in search engines that target specific verticals, or could help them refine how search is performed. Google apparently is also on the lookout for companies that can help them improve their display ad business, or with the development of Chrome. "We have historically done an acquisition, perhaps, one a month or so, and those are typically small, they're typically a complete offering, they're typically technology-intensive," said Schmidt on the call. "They're not very expensive in the scheme of things, and they bring some specific technology."

Schmidt also confirmed that Chrome OS is on track for a beta release later this year, claiming that internal demos have proven it to be a superior offering for netbooks, and far beyond anything offered by either the Microsoft, or Linux camps in both “speed and efficiency”.

So who do you think Google should buy?