Some of the social networks available in the internet have already exposed semantic data about its users, so this means you can get some results out of the search engines without having submitted or published and semantic (structured) information yourself.
Of the semantic search engines available I chose the two that returned the largest number of triples related to my name:
You can see the results yourself by clicking on each of the following links
- Searching for Miguel Miranda de Mattos on SIG.MA
- Searching for Miguel Miranda de Mattos on Sindice.com by term
Also see like SIG.MA breaks the explicit and implicit (inferred) terms identified.
Try it with your own name, or with the name of some public celebrity...