Open Problems in Topology Collection includes problems in set theory , continua , algabraic structures , analysis , and dynamics. Page includes glossary of terms. Links are in PDF. www.sciencedirect.com/science/book/9780444522085
The Boise Problem Book Problems in combinatorial set theory and topology , collected by Marion Scheepers. math.boisestate.edu/~marion/research/BoiseProblemBook/
Thrackle. org John Conway's Thrackle Conjecture: a compilation of what is known about the question. www.thrackle.org/
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