Tunes - Tuneflow

Mac only: Multiple monitors do great things for your desktop space, but your menu bar sticks to one screen. If you're looking for more menu access, free utility SecondBar puts one at the top of each monitor.

Mac OS X only: We've been fans of Quicksilver for years, but the universal application launcher and-then-some hasn't been in active development for a while. Alfred aims to pick up where Quicksilver left off.

Windows/Mac/Linux: Launchy, the little application launcher that could, has introduced a Mac version with its latest beta. Bug fixes, performance overhauls, and new shortcuts and controls are also baked into this beta for every system.

Whether you've switched to OS X but still occasionally need Windows, you want to play Windows-only games, or whatever, Mac users have several strong options for running Windows. Gizmodo breaks down how to choose the right tool for the job.

Firefox/Chrome: Sure it's nice and all that we get Gmail for free, but those ads to the right of open messages aren't really all that helpful. Free browser add-on Rapportive replaces Gmail ads with contact info about the sender.

Mac: Popular shareware software bundler and discounter MacHeist has released a new bundle, offering up 7 premium apps for $20. If you don't feel like shelling out the dough despite the hefty discount, let's take a look at free alternatives.

Windows/Mac/Linux: Mozilla's second Developer Preview of Firefox 4.0's framework and back-end highlights a feature we'd heard was coming: separate processes for plug-ins. That means if (when) Flash or another plug-in crashes, there's a good chance your browser won't go with it.