Does your Blackberry need an extra weapon in the ongoing battle against unsolicited junk email? JMR staff and clients have had great success with the Antair Blackberry Spam Filter. It runs right on your handheld with no need for additional desktop or corporate filters. You can find a 30 day trial at antair.com.

At JMR we’re constantly impressed with how easy Dropbox automatically synchronizes files between Windows, Mac and Linux computers. Just drop a file in a folder on one system and it instantly appears on the others. You can get 2 GB of storage for free at getdropbox.com.

For your next brainstorming session, check out bubbl.us. This slick, free web application lets you create quick, colourful mind maps that can easily be shared, emailed and printed. Why waste time copying notes from whiteboards?

Computer viruses often attempt to use infected machines to send out spam. You may not even know that it’s happening! If your corporate mail servers are blacklisted it could have severe repercussions on your ability to do business. With MX Toolbox you can quickly find out if your company has been listed.

Word and Excel documents are fine for internal use, but when sending documents to clients there’s nothing more professional than a PDF file. Free software like PDFCreator can turn any document into a print-quality PDF. It’s as easy as printing. Download it free at www.pdfforge.org.