The 1000 genomes browser at browser.1000genomes.org but all data is accessible from the Ensembl browser at grch37.ensembl.org You can see individual genotype information in the browser by looking at the Sample Genotypes section of the a variant page. This can be reached from the menu on the left hand side of the page. You can find a particular variant by putting its rs number in the search box visible at the top right hand corner of every browser page.