In the paper we focus on the experience of some Networked Readness Index (NRI) leading countries. We are interested in their actions aimed at creating and using e-infrastructures and IT for the research data aggregation. As far as quite many of NRI leaders are EU countries, we also take into account EU approaches to the task mentioned. We study some steering papers and some particular IT-projects in the field as well. As a result of the analysis we ascertain that some approaches in different countries have much in common. All of the countries examined acknowledge the problem of e-infrastructures for research data storage and processing to be vital. The countries work hard in order to build and integrate it with the others. We can clearly see some differences caused by traditions and authorities. Sometimes we even could estimate the level of success of a particular country on the way to the problem solution. We also indicate some common elements for all e-infrastructures for research data storage and processing.