Web Mining/Social Mining (facebook, twitter, mixi, etc.)
Keywords: data mining, social media, data scientist, data analyst, web mining, screenscraping, scraping, mining, twitter, facebook, mixi, sentiment, Firefox, Internet Explorer, Selenium, PHP, R
Mining and scraping web sites (both those that provide an API, and those that make it hard), in various world languages. Also text mining social network sites. For instance: measuring sentiment based on large number of Twitter tweets (again, handling more than just English). The same for various news web sites, in a large number of world languages (English, Japanese, Chinese, German, French, Russian, Korean, Hindi and more).
Automation tasks such as posting the same announcement to Facebook, Twitter and a blog, to save a user repetitive and boring work.
(I've also made some minor contributions to the open source Phirehose project, which is used for getting streaming data from Twitter. I have also contributed some demos for the twitterouath library.)