Semi-automatic Index generation?

[David Bovill]

Is there a resource/ index that any one knows of for plain uninteresting
dull words. I want to take arbitrary chunks of text and search for
"interesting" words - that is domain specific words that might be useful to
links to create dictionary entries. This would mean creating a list of words
and stripping "the" "it" etc. I am imagining it working like a spelling
dictionary with the ability to manually edit entries - but I'd like a good
starting list? Not sure what to search for :)