Yes, as Balasubramanian has already said I had asked him before why is it so and learned the pronunciation. I wholeheartedly support your views that the Tamil Government must take steps for this. But friends, I think it will be wiser to use Tamil in TamilSpider rather than Thamizh or Tamizh.
Let me elaborate. The popular name is Tamil across the world just like 90 percent of the world populations still say Calcutta instead of Kolkata. So, when anyone will be searching anything on Tamilnadu, especially from outside the state or even outside India, chances will be more for him to her to stumble in TamilSpider if we use the word Tamil here and not Thamizh. For the betterment of the site (and if the site earns more we will be earning more too, remember that!), we must compromise with this for the sake of SEO.
Nevertheless, I am in no way an SEO guru and I await the response of the adepts regarding this.
Site Co-ordinator, SpiderWorks Technologies Pvt. Ltd.
Surprising CTR, CPC and eCPM in Punjabspider!