It is always interesting to see how papers we publish are received by the community and one useful metric is the number of times a paper is viewed or downloaded. Authors also like to see this information when their paper was one of the most heavily viewed papers.

Each month we will report the original research papers we published that received the most unique views (HTML) and downloads (PDF) the previous month. This will be broken down between papers published in that month's issue and papers published in prior months. Now for the most popular downloads for the month of February.

Top 4 research papers published in the February issue
1. Microfluidic control of cell pairing and fusion
2. Photoactivatable mCherry for high-resolution two-color fluorescence microscopy
3. A bright and photostable photoconvertible fluorescent protein
4. miRNA in situ hybridization in formaldehyde and EDC–fixed tissues

Top 10 research papers published prior to the February issue
1. Mapping and quantifying mammalian transcriptomes by RNA-Seq
2. Stable knockdown of microRNA in vivo by lentiviral vectors
3. Genome-wide analysis of transcription factor binding sites based on ChIP-Seq data
4. Stem cell transcriptome profiling via massive-scale mRNA sequencing
5. mirWIP: microRNA target prediction based on microRNA-containing ribonucleoprotein-enriched transcripts
6. Genome-wide profiles of STAT1 DNA association using chromatin immunoprecipitation and massively parallel sequencing
7. Whole-cell 3D STORM reveals interactions between cellular structures with nanometer-scale resolution
8. Bright far-red fluorescent protein for whole-body imaging
9. High-resolution mapping of copy-number alterations with massively parallel sequencing
10. A versatile tool for conditional gene expression and knockdown