In his talk at the ANDS consultation meeting in Perth last week, Ross Wilkinson mentioned research showing that data sharing leads to a citation benefit. The full citation is:
Piwowar HA, Day RS, Fridsma DB (2007) Sharing Detailed Research Data Is Associated with Increased Citation Rate. PLoS ONE 2(3): e308. doi:10.1371/journal.pone.0000308
DOI resolution doesn't appear to be working, but if you put the DOI into Google, it finds it. Here's a direct (but perhaps not persistent) link: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0000308
Here is the abstract:
Sharing research data provides benefit to the general scientific community, but the benefit is less obvious for the investigator who makes his or her data available.
We examined the citation history of 85 cancer microarray clinical trial publications with respect to the availability of their data. The 48% of trials with publicly available microarray data received 85% of the aggregate citations. Publicly available data was significantly (p = 0.006) associated with a 69% increase in citations, independently of journal impact factor, date of publication, and author country of origin using linear regression.
This correlation between publicly available data and increased literature impact may further motivate investigators to share their detailed research data.