Two new tools on the UCSC Genome Browser web site provide improved ways of combining information from multiple datasets, optionally including the users own custom track data and/or data from track hubs. The Data Integrator combines columns from multiple data tracks, showing all items from the first track along with overlapping items from the other tracks. The Variant Annotation Integrator is tailored to adding functional annotations to variant calls, it offers a more restricted set of underlying data tracks but adds predictions of each variants consequences for any overlapping or nearby gene transcript. When available, it optionally adds additional annotations including effect prediction scores from dbNSFP for missense mutations, ENCODE regulatory summary tracks and conservation scores.