“We live in public” isn’t just the name of a film; it’s an Internet truism.

For the past ten years, more and more of us have been using blogging platforms to share the details of our personal and professional lives. With the advent of microblogging, the sharing has escalated to include the most intimate, immediate, and even mundane details of one’s daily grind. When pressures abound, venting online is second nature; but oversharing can bear disastrous consequences. The cure? Penzu‘s private-by-design, sharable-by-choice blogging software.

Unlike most modern CMSs (and actually somewhat reminiscent of dotcom-era systems such as Livejournal), Penzu focuses on personal journaling and privacy. The company, a small Canadian outfit which launched last summer, says its posts are private by default.

An in spite of its focus on privacy, the system is hardly antisocial. Flickr photos can be imported, and each entry comes with an optional URL for sharing on other networks.

The new Penzu Pro features, available for the relatively low price of $19 a year,are pretty useful, as well. With the free version, users can create, save, search and share journal entries. The paid version of the software allows users to also import entires from just about any kind of blog (in case oversharing has been a problem in your past) and export Penzu entries, as well as giving users a slew of customization options, offsite backups and military-grade 256-bit AES encryption for maximum data protection.

And just in time for the holidays, Penzu Pro is giftable for the oversharer in your network.

We gave Penzu a spin and were impressed by the interface and the entire concept of private blogging. The company has taken something old, given it a beautifully modern UI, added beneficial features and made a useful product that addresses a common problem.

Certainly, WordPress, Blogger, and other CMSs allow for locked posts. But the idea of having a separate destination for one’s innermost thoughts gives the end user a little more comfort to express himself freely. Give it a spin, and let us know in the comments how the experience feels to you.