Most now mainstream/popular (interpreted|scripting) programming languages were created around the 1990's. (Perl, Python, Ruby, PHP just to name a few).

• How many people knew about those languages around 1-2 years after they had been first published?

• Are there languages with potential of becoming as important as e.g.: Python or PHP being developed at the moment? I mean ... is there someone even seriously trying to create a new one?

• If the first version of a programming language is published and nearly nobody knows about it, as it was with all the languages I've mentioned above, where could I find out? Is there some sort of "list" or "network" dealing just with non-language-specific news?

• Is the area where Perl, Python, Ruby and PHP fit in already fully covered?

• Do you know of concrete examples of new programming languages being seriously developed or rising at the moment? (Except Google's go!)