Defining your terms:
I. Gadfly: Noun
a. A persistent irritating critic; a nuisance.
b. One that acts as a provocative stimulus; a goad.
II. Gadfly Magazine: An arts and culture magazine based in Charlottsville, VA
III. Gadfly Records: A Burlington, VT. independent record label
IV. The psuedonym of columnists in several publications
V. An SQL relational database.
VI. A possible career-path for me.