I have been using Dropbox (link here), the online file storage site, for a few months now and I have to say that I really love it. With 2GB of free storage (and up to 100GB paid), it offers seamless integration between desktop, Web and mobile device (for me, iPhone and iPad), with offline edits synced quickly across your systems. You can load most types of media, including text, audio, video and images. You can share a file with someone else without having to resort to email exchanges. Changes they make to the public documents are synced as well, so that you can easily collaborate on a single file.

While none of these abilities alone makes Dropbox the standout killer app among the crowd of on-line file storage tools, the combination of features, plus a few relatively recent additions to the service from third party developers, have made Dropbox even more compelling.

First, a few weeks ago, stellar password manager 1Password (link here) announced the ability to backup your passwords in that app via Dropbox. It used to be that you would have to manually update passwords between your Mac software and your mobile device. Now you can automatically back up all 1Password enabled devices for free via Dropbox and the cloud. Check out 1Password’s user guide on how to do it here.

Next, web app Airdropper (link here) allows you to send a request to Dropbox and non-Dropbox users to upload a file to your Dropbox. Simply connect to Dropbox, send a request to a colleague for the file via the web interface with a link for upload, wait for your colleague to follow the link and upload and receive the file in the spot you designated in your Dropbox.

Finally, if you like to dictate, check out Dictamus (link here), a dictating app that connects to Dropbox for cloud access to your transcripts. The app itself includes many professional dictation features, such as rewind, overwrite, insert and edit functions, and voice activation to avoid pauses. But the ability to sync your dictation to the cloud with Dropbox makes it even more compelling for quick entries and sharing. For the record, Dictamus syncs with MobileMe’s iDisk as well.

It really doesn’t get any simpler than that! I already am loving Dropbox and I applaud their efforts to combine with other developers to offer such great features for free. Can’t wait for the next upgrade to this already great system.