It's been a busy week at Download Squad HQ. We've been busy covering the releases of several new web browsers, updates to several operating systems, and we've been continuing our never-ending quest to find as many ways as humanly possible to waste time while using a computer.

We're also expanding the Squad a bit. You may notice posts from some new bloggers over the next few days. Feel free to say hi, and please don't haze them. You know, unless you really have to.

And without further ado, here's a list of some our favorite stories from the past week:

• Firefox 3 is pretty much ready
  After years of working, testing, and tweaking, Mozilla plans to officially launch Firefox 3 on June 17th. This week saw the release of Firefox 3 RC3, which is basically identical to Firefox 3 RC2 if you're using Windows or Linux, but the latest version fixed a critical bug on Mac systems.
• Mozilla shows off Firefox mobile interface concept video
  But it's not all about desktop browsers over at Mozilla HQ. The developers of Firefox are also hard at work on a project to craft a mobile version of Firefox that will run on cellphones. The company unveiled a concept user interface this week that might make its way into the final release. Or it might not.
• Microsoft TownSquare: A social network for business communications
  Microsoft may own a stake in Facebook, but it looks like the company's not putting all of its social networking chickens in one basket. Microsoft is also working on a social network for internal use by businesses who want to faciliate communication and collaboration among employees.
• TidalTV: Web video doesn't get much more TV-like
  Tired of internet video looking more like video stuck on a web page than TV? TidalTV is a new video site that looks almost exactly like an interactive program guide from a cable or satellite network. And it features a combination of live video streams and on-demand programs from several networks including HGTV, National Geographic, and CBS.
• Viewzi visual search engine gives you a dozen ways to search
  Ever find yourself staring at Google Images wondering why it's so hard to find images? Viewzi can help. This highly customizable search engine lets you flip through images about a dozen different ways, and tries to predict which views will be the most helpful depending on your search terms. It's a bit overwhelming, but also extraordinarily cool.
• Opera desktop browser 9.5 is final - Take your stuff with you
  Mozilla's not the only company with a new web browser to promote. Opera 9.5 went gold this week, and the latest version of the browser is faster than ever, has a nifty new skin, and has a new Opera Link service that lets you sync your settings across browsers on multiple machines.
• HotPads shows real estate rents, foreclosure rates, and demographics heat maps
  HotPads is a real estate search engine with more eye andy than you can shake a stick at. Not that you typically shake sticks at real estate search engines. But HotPads lets you search by location, price, and number of bedrooms like any other real estate listing site. But HotPads also shows you heatmaps with information like the average rent, foreclosure rates, age, or income levels in a given area.
• Parallels for Mac hits 1,000,000 users
  No matter how much you love your Mac, the truth of the matter is that there are still some programs that are Windows only. So it's probably not surprising that Parallels, a program that lets you run Windows on a Mac without rebooting is so popular. Whether you use it on a daily basis or just on the rare occasion when you really want to fire up MS Paint, we're betting there's a decent chance you've got Parallels or another virtualization program if you've got a Mac.

Text based search engines are all right if you're looking for text-based web pages. But Microsoft, Yahoo!, and Google all have features that let you search for images or videos, because let's face it, that's what you're looking for on the internet much of the time. But the major search engine's approach toward image and video search feels a lot like the old fashioned approach to text-based search. You get a list of results, a brief description, and a link to the original source. If you're lucky, you may get the ability to watch a video or view a larger version of the thumbnail without leaving the search page, but that's about it.

Viewzi is one of a handful of new web sites that's aimed at making visual search a little more... visual. Like visual search engine SearchMe, Viewzi lets you scroll between screenshots of web pages. But it doesn't stop there. Viewzi offers over a dozen different ways to view search results. You can pick your favorite view and then conduct a search. Or you can rely on Viewzi to automatically detect the type of information you're probably looking for and select a view for you.

For example, if you're searching for a song title, Viewzi will move the MP3 search view to the top of the list so you can find and listen to songs. If you search for "weather in Philadelphia," Viewzi will recommend a weather view or a news view, which shows associated content like a weather forecast or news stories related to your search.

Viewzi launched a public beta today, which means the service, which we first mentioned last summer is now open to anyone. But it is still a beta, and some search views work better or load more quickly than others.

It seems like everyone is trying to cram 3d into anything they can; Search is no different. Viewzi, currently in prototype, is a 3d search tool that looks interesting, if not actually useful.

Justine Ezarik caught up with one of Viewzi's representatives back in May at the How conference and, if you haven't already seen the video, it's worth a look. Viewzi promises some innovative features in search but, the system requirements are so far not clear. What is clear however, is that Viewzi won't be the only company to attempt to revolutionize search with a little 3d pizzaz.