Big, big news for the JED, the Joomla! Extensions Directory: a Extensions Directory: from July 2009 all extensions it will give us will be made redundant by the text of the GNU / GPL.

We discover what all this is happening and coast along in the community after this decision. With an article that has sparked immediate protests from many developers, the development team of Joomla! announced that the JED, from July 2009, will contain only extensions released under the GNU / GPL license.

(For those who can not remember what it is, here's an article by submitting the JED that I will explain)
Basically what was decided?

Here's a dilemma that afflicts every Joomler who knows what the cache: use it or not?. Before we see the clarity on this term, then look at where, how and when to activate. A cache (pronounced chesc) is a mechanism by which we offer a web page previously developed / visited (technically in cache or cache) to a visitor rather than let them develop all the code that forms the same page.

The mechanism is very simple, with a practical example.

Suppose you have a page showing content: we have first of your HTML, then PHP should be to develop a query to the MySQL database, and when I visit for the first time the page is performed all these operations, with a time of 1 second (value invented and totally random).