Learning is not compulsory... neither is survival.
W. E. Deming (1900 - 1993)

We've been very much into Open Source Content Management Systems for the last two years.

After trying out a whole bunch of them [from historic Perl scripts to fancy JSP apps, from Nuke-like PHP portals to innovative Python frameworks], whe've chosen to stay with mainstream LAMP platforms and CMSes.

Our contribution to the OS community [and our portfolio] in this field has to do with Italian localizations, visual design, debugging and first level support.

If your site is getting a mess to maintain, you may have reached the Content Management stage... Let the tycoons spend big money in proprietary bubble solutions and tell us what you really do need. We believe to have a handful of good answers here.