Help me in by suggesting a new website name ?

1
which domain will be better considering that it should be available all over world , SEO and good name of course .in .us .com .biz .mobi .info .org .name .net and tell problems if any with given extensions like residents requirement etc
2
this website will basically be a technical wordpress blog which will be about internet tips tutorials reviews etc so i thought of following key words
tech junky junkie freak geek
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