User Portlet

What is your best recommendation for sharing Mathematica notebooks with non-Mathematica colleagues? 1. Printing to pdf often cuts off graphics and they are only partially contained in the file. 2. Latex export for a notebook produces a mess....

Why doesn't Cases[{"a", "b"}, "a"~~___] return {"a"} instead of {}? I used three underscores. More detailed, why does 62 work, but 61 not In Cases[{"abcde", "b"}, "a"~~__] Out[61]= {} In[62]:=...