Amateur meteorologists, for example, make chitchat at two Usenet newsgroups devoted to general weather (sci.geo.meteorology and uk.sci.weather).
There are many more websites that target amateur meteorologists. 
mnli hypothesis: There are many more websites that target amateur meteorologists.  premise: Amateur meteorologists, for example, make chitchat at two Usenet newsgroups devoted to general weather (sci.geo.meteorology and uk.sci.weather).