One of my clients was buying Stumble traffic and as soon as he stopped doing it, Alexa rank for his site dropped by 1000s.
We think this is because users with Stumble toolbar tend to have Alexa toolbar too. (and probably other toolbars)

In PHP5 you don’t do it like

$char = $string{2};

Do it like:

$char = $string[2];

The curly braces syntax is deprecated!

Here is a nice way of doing this:

for( $i = 0; $i < 12; $i++ ) {
    $retval[ $i ] =
       date('M', strtotime('Jan +' .$i .' month'));
}

The real power of this is when you put it in a function like this:

function get_months($format) {
   $retval = array();
   for( $i = 0; $i < 12; $i++ ) {
      $retval[ $i ] =
         date($format, strtotime('Jan +' .$i .' month'));
    }
   return $retval;
}

And calling it like this:

$list_of_months_short_text = get_months('M');
$list_of_months_full_text  = get_months('F');