Uploading online all Data used in thesis? For my Ph.D work I used large volume of data which can not be put into my thesis. So, I am planning to put all this data online, so that other could download freely and cross check my work. It would also help future scholars to do the same work conveniently in future. Providing data online used for research is not commonly practiced in my country. I just want to know is it right(also sensible) to do the same? Won't it lead to any complication in future? 

Can you also please tell me what is being practiced in other countries like USA and UK regarding data? 

[Note : all data is downloaded from free sources so does not involve any copyright issue]
In general I think this is a good idea, but it might depend on your area. This way others can verify your method and compare it to yours. At least this is how it is used in for example Computer Vision and Machine Learning.

Some examples:


Online image database (University of Edinburgh
Different data sets of the University of Texas
Computer Vision test images (Carnegie Mellon University)
Microsoft Research Image understanding


Some theses with a dataset published:


Doug Downey's PhD thesis
Soo Ling Lims' PhD thesis
Toine Borgers' PhD thesis


Professor S. Rüger from the Open University UK, wrote in How to write a good PhD thesis and survive the viva (for a PhD in the computing subject):


  Some value in a PhD thesis is drawn from careful
  experimental design. It is best practice to only change one parameter at a time; to use datasets that are publicly available or at least make datasets available; to describe experiments in a way so that they are reproducible; and, particularly in Computing, to set up experiments in
  an automated batch fashion.


You however have to make sure that you are allowed to (re)publish the data on your web without violating any copyrights (even if it can be downloaded for free), otherwise you can just link to the external data set.

Edit: also see this question about Publicly Available Datasets.