Yahoo BOSS, the Yahoo-based tool that allows users to create and maintain their own search engines, has been upgraded. Called Key Terms, the new service allows users to see the words related to a search or a particular site. It will also allow users to implement their own restrictions on said keywords. Many within the industry feel that BOSS is a lone bright spot at Yahoo, which has had its share of resignations, budget cutbacks, and failed mergers in the past year. Key Terms technology is available now for all BOSS users.

In other news, 1Cast is aiming to bring video to those who need it most — desperate bloggers. Instead of distributing user-loaded video like YouTube or television programming ala Hulu, 1Cast is centered around news clips. Like the controversial RedLasso, the service is aimed mainly towards bloggers who need something to augment their post or support their argument. Unlike RedLasso, all of the snippets have been officially licensed. At press time, the service has a number of heavy hitters on board including CBNC, CBC, and the AP. 1Cast is available now in a “private beta” format.

In the world of SEO, there are few things more controversial than InLinks. For those unaware, InLinks turns seemingly innocent words into active links. Unlike other plans, there are no visual difference between these links and the “traditional” ones. “Google has been very clear that selling such links that pass PageRank is a violation of our quality guidelines,” Google’s Matt Cutts tells TechCrunch. “Other search engines have said similar things. The reality is that accepting money to link to/promote/market for a product without disclosing that fact is a very high-risk behavior, in my opinion.”

As a prelude to Browser Extension Friday, we have Fashion Your Firefox. As the name suggests, Fashion Your Firefox is an officially licensed tool designed to help you get the most out of your browser. Each extension is sorted by category, type, and “package.” While it won’t help you do anything advanced such as copying your profile to another computer or editing your config file, Fashion Your Firefox will help you overcome those small web-related “inconveniences” that trouble us all from time to time.

And to finish out the week: Sometimes, using “just one” browser is not enough. While running several different browsers might be good for some, it’s definitely not for everyone. That’s where emulation comes in. While there are a few browsers out there that have emulation services built-in (most notably Konqueror for Linux), most need that “added boost” that only a high-quality plug-in, tweak, or web service can provide. On today’s episode of Browser Extension Friday, we take a look at five tools that can make emulation a reality.

• IE Tab - For Firefox. Bring the “power” of Microsoft’s favorite browser to Firefox. IE Tab is considered to be a “must-have” add-on for many users.
• How to Let Safari Pretend It’s IE - Blogger David Alison explains how to bring Internet Explorer not only to Safari, but to OS X on a whole.
• Browsershots - For all browsers. Test your website in a variety of browsing environments without ever leaving the browser of your choice.
• OperaView - For Firefox. This little tool lets Firefox fans experience Norway’s browser of choice firsthand. Unlike IE Tabs, OperaView is primarily for web developers with Opera handy.
• Browser Emulator - For all browsers. Browsing Emulation is an interesting service designed to take you back on a trip through time. Several browsers of yesteryear are included, from HotJava to Mosiac to the command line. Although running the Browser Emulator isn’t the best way to test out your new CSS and Flash website, it’s a great way to reminisce and have fun.