Your mission, should you choose to accept it, is to save the world. This message will self destruct in 10 seconds... (queue Mission Impossible theme song!)

Sometimes you want to send a private email to someone, the type of email that contains sensitive information. Perhaps you're plotting to overthrow the board of directors at your company, or maybe just the latest gossip about your boss and his rather disgusting eating habits. Obviously, you don't want ANYONE but the recipient to see that email. In fact, you're not even sure you want to risk them saving that email.

Enter Privnote. Privnote allows you to send an email that will self-destruct (sans messy explosions, and evidentiary ashes) after reading it, leaving no trace of its existence at all.

What makes Privnote cool and different from regular email:

• You get a link to the note, and once that link is clicked the note is destroyed so it can only be seen once. If someone intercepts the link and sees the note before the person who's intended to read it, that person will know that the note has been eavesdropped, and can tell you about it.
• If you want to be notified when your note gets read you can do it by checking the notify box located below the note. Neither email nor instant messaging provides a reliable way to know if, let alone when, your messages are read.
• If you send a note and suddenly regret having done so, you can click the link yourself which will destroy the note and prevent the receiver from reading it.

With the past year featuring heavily-hyped Mac software bundle sales from MacHeist and MacUpdate, it's refreshing to find Make Your Own Mac Mix is offering a build-it-yourself bundle which features heavy discounts the more apps you purchase.

With 28 applications available to add to the Mix, you simply add the ones you want to your bundle and watch the discount grow and grow as you add more apps. Parallels Desktop for Mac is the premier app available, but the rest of the apps are pretty cool too. And I don't believe any of the others were available in any previous promotions.

The first app gets you a 10% discount. Three apps equals a 30% discount, five apps garners you 40% off, seven apps 50% off, 9 apps 60% off and 12 apps 75% off.

The site itself is quite nice, too. It's worth checking out the site design, even if you don't intend on buying anything. By the way, the promotion only has less than 10 days left

If you're reading a Web page and want to go back to the last site you visited without leaving the current site you're on, there's a simple trick to allow you to do so.

Hold down the Command (Apple) key and click the Back button in Firefox or Safari. The site you're currently visiting remains open and the previous site you visited will open in a new tab.

John Nack has posted a note to let us know that Adobe has posted Beta 2 of the upcoming Flash Player 10 to Adobe Labs. An Adobe engineer pointing out that on Mac OS X this new build runs the GUIMark test suite some 3x faster than previous versions. That's VERY welcome news given that Flash has always been a thorn in Mac-user's side no matter which browser you use or how fast your connection is.

In a somewhat crowded market, yet another visual CSS editor has been released that's certainly worth checking out.

Flux is a visual CSS editor that uses Javascript to add some flair to your designs. Flux allows you to drag & drop elements onto your page, move them around and watch your CSS files get updated.

Flux retails for $69, and a demo is available from The Escapers Web site.

Cascading Style Sheets (CSS) is a good way to specify the styles of fonts and other page elements on your sites. It makes it easier for you to update styles too, because when done right, you only need to make a single change to update the styles on multiple pages and elements.

To help you work with CSS, Hostm.com has created a free tool called Simple CSS, which runs on Macs, Windows and Linux. Simple CSS allows you to easily create Cascading Style Sheets from scratch, and/or modify existing ones, using a familiar point-and-click interface.

Users of Apple's Safari Web browser may be used to the ability to view PDFs natively right in the browser window, but until now Firefox users have been mostly left out in the cold.

Quartz PDF Plugin is a new add-on for Firefox 3 which brings the same capability as Safari. It worked perfectly in my tests. The plugin requires Firefox 3 running on OSX 10.4 or higher.

Sounds like a good deal, right? All you have to do is get Firefox 3 during Download Day to help set the record for most software downloads in 24 hours - it’s that easy.

The official date for the launch of Firefox 3 is June 17, 2008. Join our community and this effort by pledging today.

For more information, check out the Download Day Web page. So far, over 1.3 million people have "pledged" to download Firefox 3. I suspect that the actual number of downloads will be higher though.

Once you download Firefox 3, be sure to check out some of the great extensions mentioned in my earlier post about great add-ons for Firefox.

Father's Day is tomorrow, which means tomorrow is the last chance to take advantage of the XtraLean Software Annual Father's Day Sale.

I wrote about this earlier this week, but just in case you didn't see it, here's the scoop:

Use the coupon code MACDAD08 when you purchase Shutterbug for $29.95 ($10 off the regular price) at the XtraLean store and you'll receive a serial number for both Shutterbug and ImageWell. For more info, read my original article.

WebDesignerWall has put together an extensive list of Web site design trends for 2008 to inspire your next Web design project. These sites which include vintage & retro, hand written note, grunge & splatter, watercolor, and large font styles, are all superbly designed and make heavy use of CSS, color and imagery.

In honor of Father's Day, XtraLean Software is offering a special deal for Mac enthusiasts. Buy Shutterbug at the discounted rate of $29.95 (normally $39.95) and receive ImageWell (normally $19.95) absolutely FREE!

Just use the coupon code MACDAD08 when you make your purchase before June 15th through the XtraLean Father's Day store.

With Firefox 3 in the final stages of beta, I've been looking at what extensions I use and whether or not I wish to continue using them. Since most extensions don't work in the beta version of Firefox without the use of Nightly Tester Tools, I've been living without most of them for a while.

Below is a list of extensions I consider must-have. All the extensions I've listed either work already with Firefox 3rc1, or work with Nightly Tester Tools forcing them to work.

For bloggers and designers who've spent many hours writing copy for a Web site, one of the most annoying things that can happen is to have somebody copy and paste their work word-for-word and paste it on their own site - many times with not so much as a credit link. You own the copyright, but who has time to scour the Internet for content thieves? Copyscape has the answer.

If you're a Web designer, you really should have WebDesignerWall bookmarked in your browser or RSS reader, it's a great resource.

Recently, they posted a rather lengthy SEO guide for designers to consider when working on their next project.

The article covers topics such as how search engines work, top SEO mistakes you can make (and probably have), general Do's and Dont's, and resources to further your SEO education.