text: **3. Emerging trends and issues related to Open**
  **Data**
  One of the most common activities for Open Data activists in this moment is the creation of 
  
  country-wide catalogs of all data sources, to facilitate individuation and correlation of independent 
  
  data sets. Normally, all initiatives of this type are announced on the Open Knowledge Foundation 
  
  blog and/or its data hub CKAN. Another relevant development is the publication of an Open Data 
  
  Manual that*"can be used by anyone but is especially designed for those seeking to open up data,*
  
  *since it discusses why to go open, what open is, and the how to 'Open' Data."*Activists in several 
  
  European countries have already published local versions of the manual, or equivalent documents. 
  
  On this background, several interesting issues, some of which were anticipated in the Open Data, 
  
  Open Society report, are coming in full light. They are presented, one at a time, in the following 
  
  sections of this chapter. 