DW 2.0

After a few days of work here comes online DigitalWaters 2.0.

Maybe you'll notice just some minor aesthetic changes to the left column, but I've also made a lot of changes to the PHP code behind the whole mess.

One important effect of the changes should be a generally faster site, since I've also added a caching mechanism largely based on an article by Jay Pipes.

To tell the truth everything started from the categories' cloud that I implemented after seeing it in some blog and that I was willing to try on this site to replace the plain list that was there before. Then I lost my grip on the whole situation… :)