Here is a list of Bioinformatics projects for volunteers. I have read some posts that lots of people, interested in computational biology, would like to participate in a bioinformatics project. I assume those wants bioinformatics ideas to start. Comments and answers are welcome, enabling me to update it irregularly.
# Mainly for people who can program ( R, Python, Java etc.).
Mentored Projects from Bioconductor
DREAM Challenges pose fundamental questions about systems biology and translational medicine.
# Mainly for people in Medicine or Biology
Stargeo aims to annotate disease samples (such as control and a certain disease) from GEO, enable powerful meta-analysis of a certain disease. (Medicine or Biology knowledge is necessary, especially related with diseases)
BD2K-LINCS-DCIC Crowdsourcing Portal includes crowdsourcing projects (lots of microtasks and megatasks) related with drugs, genes and diseases in Library of Integrated Cellular Signatures (LINCS) (mainly) and GEO.
1. Khare, Ritu, et al. "Crowdsourcing in biomedicine: challenges and opportunities."Briefings in bioinformatics (2015): bbv021.
In my opinion, one of the main issues for both sides, except knowledge, is the contribution of continuity. Working few days / weeks and then giving up probably is suitable for crowdsourcing projects to an extent.
Update (24 March, 2016):
open innovation pavilion : One of the focus is on transnational medicine or transnational bioinformatics.
nature.com has teamed up with InnoCentive to offer its readers the opportunity to participate in research and development challenges. As a Solver, you can apply your expertise to important problems, stretch your creative boundaries, and win cash awards.
Update (4 Jue 2016)