| dbSMR | Homo sapiens. | http://miracle.igib.res.in/pol... | 
| dPORE | Homo sapiens. | http://apps.sanbi.ac.za/dpore/ | 
| IGDB.NSCLC | Homo sapiens. | http://igdb.nsclc.ibms.sinica.... | 
| mirGen | Homo sapiens, Mus musculus. | http://www.microrna.gr/mirgen/ | 
| miRNA SNiPer | Homo sapiens, Rattus norvegicus, Canis familiaris, Mus musculus, Danio rerio, Gallus gallus and 11 others. | http://www.integratomics-time.... | 
| miRvar | Homo sapiens. | http://genome.igib.res.in/mirl... | 
| Patrocles | Homo sapiens, Rattus norvegicus, Canis familiaris, Mus musculus, Gallus gallus, Bos Taurus. | http://www.patrocles.org/ | 
| PmiRKB | Arabidopsis Thaliana, Oryza sativa. | http://bis.zju.edu.cn/pmirkb/ | 
| PolymiRTS | Homo sapiens, Mus musculus. | http://compbio.uthsc.edu/miRSN... | 
| The UCSC Genome Browser database | Homo sapiens, Rattus norvegicus, Canis familiaris, Mus musculus, Macaca mulatta, Bos Taurus and 40 others. | http://genome.ucsc.edu/ |