The following chart only tells part of the story (both based on the specific demographics of this site and for the fact that XP is off the chart) and is really only offered up for perspective on what Apple is up against in their battle with Microsoft for OS dominance. Apple has made healthy gains in the OS market share race over the past few years, so keep that in mind when you look at the following chart.

That said, it is interesting to see the much maligned Vista zooming past Mac OS over the past few months. Apple fans, think about how tough Apple's job is here. If the tech press is to be believed, Vista is an abject failure*, but yet… in September, this site saw nearly three times the number of Vista visitors versus overall Mac OS visitors.

For all the gains, there's still a long way to go.

As a note, the spikes in March are due to landing on the home page of Slashdot. Lots of Apple and Linux heads on Slashdot.

Here are the numbers:

Month	Visits	Mac OS Visits	Mac OS %	Vista Visits	Vista %	Linux Visits	Linux %	XP Visits	XP %
Jan-07	8718	661	7.58%	13	0.15%	39	0.45%	7,405	84.94%
Feb-07	11875	891	7.50%	102	0.86%	69	0.58%	9,833	82.80%
Mar-07	15284	1133	7.41%	282	1.85%	90	0.59%	12,510	81.85%
Apr-07	15548	1162	7.47%	393	2.53%	120	0.77%	12,752	82.02%
May-07	15274	1190	7.79%	469	3.07%	143	0.94%	12,381	81.06%
Jun-07	19060	1361	7.14%	788	4.13%	193	1.01%	15,428	80.94%
Jul-07	28853	2347	8.13%	1704	5.91%	339	1.17%	22,920	79.44%
Aug-07	19481	1528	7.84%	1378	7.07%	213	1.09%	15,343	78.76%
Sep-07	27460	1923	7.00%	2120	7.72%	285	1.04%	21,577	78.58%
Oct-07	28224	2249	7.97%	2282	8.09%	305	1.08%	21,774	77.15%
Nov-07	29572	2389	8.08%	2742	9.27%	331	1.12%	22,466	75.97%
Dec-07	27850	2338	8.39%	2949	10.59%	315	1.13%	20,541	73.76%
Jan-08	28478	2302	8.08%	3676	12.91%	375	1.32%	20,668	72.58%
Feb-08	27440	2323	8.47%	3658	13.33%	519	1.89%	19,427	70.80%
Mar-08	70377	7851	11.16%	9418	13.38%	5076	7.21%	44,845	63.72%
Apr-08	34714	2760	7.95%	5172	14.90%	452	1.30%	24,514	70.62%
May-08	38469	2876	7.48%	6020	15.65%	413	1.07%	27,146	70.57%
Jun-08	35052	2402	6.85%	5718	16.31%	441	1.26%	24,462	69.79%
Jul-08	38298	2861	7.47%	6441	16.82%	620	1.62%	26,198	68.41%
Aug-08	36360	2851	7.84%	6447	17.73%	610	1.68%	24,352	66.97%
Sep-08	47997	3162	6.59%	8639	18.00%	587	1.22%	32,891	68.53%

*For full disclosure's sake I'm actually a regular Vista user and quite like it (madness, I know) and I just picked up a Dell mini running Ubuntu.