Interactive Venn diagram: http://www.interactivenn.net/#
Amazingly comprehensive cistrome (TF, histone, open chromatin) database and analysis tool from Shirley Liu's lab: http://cistrome.org/db/#/
Gene set:
GeneWeaver: https://www.geneweaver.org/
MSigDB: http://software.broadinstitute.org/gsea/msigdb/index.jsp