I love the above graph from Quandl, it is as easy as using a search engine for numerical datasets, and it gives me graphs, and download and embed options. Nice Work Quandl!
I hope the R Package Quandl at http://cran.r-project.org/web/packages/Quandl/ is used more often for searching for datasets. Rather than import dataset using URL as in R Studio Server, maybe we can have some import Quandl dataset features too. URL’s are so 90’ish. or maybe the Shiny Server /Quandl mashup can bring some new ideas. After all Dashboard Design is still relevant today! Something like a ggplot based dashboard them for analysis , for Shiny server based visualizations. I believe Shiny can have more pre-built theme (to be continued)
Quandl though must be applauded for the options they give including the R code
1) EASY SEARCH 
2) MANY DATASETS (and they respect No Indexing requests) 
3) Final Search Results are embeddable ,downloadable and linkable.
DECISION STATS 