Stemformatics is an established online gene expression data portal containing hundreds of carefully curated and annotated datasets, which include many haematopoietic cell types. One of Stemformatics' key features is the integrated data atlas where the user can project their own data and classify their cell types against a reference.
The website has recently been completely redesigned using latest web technologies to provide a smooth experience for the users. Many other features are also available at Stemformatics, including gene expression plots for each dataset and tools for finding interesting genes across all datasets.
Stemformatics is a fully open source resource, available at www.stemformatics.org.