A useful website for looking up GWAS hits and information about them:
http://www.ncbi.nlm.nih.gov/gap/PheGenI
NHGRI’s catalog of published genome-wide association studies
An interesting article about epigenetics
Favor.genohub.org (genetic variant annotation tools)
VEP (Ensembl Variant Effect Predictor)
Web-based Gene Set Enrichment Analysis