It has been another week with Google dominating the headlines. Here are some of the latest earch engine news.

Google has added a blue arrow to its search result. Look for a small blue triangle next to one of the search results the next time you do a search. You can use your keyboard arrow keys to move up and down on the search result page. Hit enter to go to the relevant web page.

This week Google also moved search to the TV set. Google TV is service made for set-top TV boxes and HDTVs based on the Android operating system. It lets you see streaming TV channels, and also includes a web browser.

In other search engine news:

Twitter’s Search Function, Now Powered by Lucene
SE Journal: Even though they have had their new search out for a few weeks now, Twitter’s new real-time search engine is just now starting to get noticed.

SMX East 2010: The Full Recap
Reports from the Search Engine Marketing Expo.

Yahoo! Search BOSS V2: A Paid Service with Web, Images, and News
Yahoo Search Blog: In 2008, Yahoo! launched BOSS (Build Your Own Search Service) to provide developers a way to leverage Yahoo!’s search infrastructure and foster innovation. The BOSS API currently connects to Yahoo!’s search infrastructure to allow individual developers, start-ups, and established consumer Internet companies to leverage the power of Yahoo!’s search capabilities.

Does Bing Time Shift Search Results?
SEO by the Sea: The meaning behind search queries can shift over time, with some results being more relevant at different times of the year, and others becoming meaningful seemingly out of nowhere.

Bartz: ‘Creepy’ Facebook Could Be Yahoo’s Top Competitor
SE Land: Yahoo CEO Carol Bartz says Facebook has a “creepy” amount of personal information about its users, and could become Yahoo’s number one competitor because of the value of that data.

Bing-Hoo Not Yet Gaining On Google, Hitwise Says
SE Land: The combination of Bing and Yahoo — both of which now use Bing-powered search results — didn’t make any gains on Google during September, according to the latest stats from Experian Hitwise.

Google Lost 200 Employees to Facebook, the Newer Cool Kid
Google Watch: What is bad is that the 200 employees are largely top Google talent, such as Sandberg and former Google Android Senior Product Manager Erick Tseng, who by the way is not building a Facebook phone.

Google’s blue arrows: I hate it, turn it off!
State of Search: Google last week added the possibility to scroll through your search results one by one using the arrows on your keyboard.

Microsoft’s Yusuf Mehdi Pooh-poohs Google Instant
PCWorld: In his view, Google Instant increases the number of results delivered to users, instead of helping them zero in on the information they’re looking for to accomplish the task at hand, he said at the TechCrunch Disrupt conference on Wednesday.

Find quality results with Hakia, a collection of librarian-recommended Web sites
Wendy Boswell: If you’re looking for a search engine that churns out extremely high-quality results, then you’ll want to take a look at Hakia, a search engine that searches through a collection of carefully vetted, librarian approved sites for the exact answer to your question.

Yahoo Plans New Search, Email as It Speeds Release Cycle
ecommerce-guide: Yahoo plans to stock its search results for popular or trending queries with a variety of content formats presented in a streamlined, easily navigable layout. Searches for popular entertainment topics or individuals will present results organized by images, news stories, videos, tweets and other types of information, presenting users with an array of one-click bars to display the results in the format of their choosing. Yahoo will offer a similar presentation for news items.

5 Reasons Google’s New Keyword Tool is Better
SE Watch: There’s been a good deal of controversy of late surrounding the newest edition of Google’s AdWords Keyword Tool. A lot of marketers in the search engine optimization (SEO) and paid search communities have come out of the woodwork complaining about the wide variance in volume projections in the new version, compared to the old.

Bing Webmaster Center To Add Link Reports, Link Explorer & More
SE Roundtable: Yesterday, Bing demoed the new link report. They also demoed a feature called link explorer that shows you what their spiders see on a link by link basis. You can even block URLs there and ask Bing to recrawl them as soon as possible.

Google TV – A Slap in the SEO Face
SE Journal: With this new “device” Google can do what Nielsen could never do. Instead of just tracking TV view habits and coming out with extrapolated data on viewer eyeballs then selling that data, Google would own it. They’d going to be able to push their own ads, sell the rights to broadcast on it, the whole nine yards.

Open your eyes: Google Goggles now available on iPhone in Google Mobile App
Google Mobile Blog: Back in December we introduced Google Goggles on Android: it lets you search by taking pictures. Today, we’re excited to announce that Goggles is now a feature of Google Mobile App for iPhone. Google Mobile App already lets you speak your queries, and it can also use your phone’s location to give you more relevant search results.

Google starts showing full page previews in search results
Blogstorm: Google is today testing a major new layout to their search results – full page previews of the target site and blue backgrounds behind the search results when you hover over them.

Google Patent on URL Compression and the Mobile Web
SEO by the Sea: Google was granted a patent this week on another kind of shorter URLs, intended to make the mobile web a little faster by compressing URLs to be displayed on mobile devices.

Yahoo Rolling Out New Accordion Search & Other Features
SE Land: The two biggest changes or enhancements that users will immediately notice involve image search and a new “accordion” module at the top of search results (though it doesn’t always appear).