that's a great list, i found some useful websites in the list.
I thinks its a matter of choice. Many people have also rushed for the .in domains just because of cheap domain registration prices.
i wanted to register a .in domain at low prices. Its very affordable.
why do you want to change your domain name? I would advice you to buy a new domain only if you wish to use it for seo purpose. But if your domain...
SEO requires patience and long term work, adwords, ppc is good for short term results. Now a days even PPC has become competitive and you need...
wordpress and blogger both are good. I won't advice joomla. I prefer wordpress because of the free plugins and added features.
concentrate on doing seo for your main website and drop the idea of buying these two domains.
Separate names with a comma.