Lots has been said about using the natural language to search for potential candidates. Examples would be "I am a Software Engineer at Microsoft" or "earned her MBA from Wharton". It's a fruitful technique.
Here is a different twist on searching in English. Suppose we wanted to find LinkedIn profiles on Google, but doing so without the operator site: or any other operators. It turns out, it is quite possible. All we need to do is to identify a phrase (or several phrases) that:
Here is an example search, using a phrase present on LinkedIn public profiles (those that are in English, of course) :"500 million other professionals".
Even if we drop the word linkedin from search, the results will be pretty much all LinkedIn profiles:
We can use alternative phrases to single out LinkedIn profiles, for example: "full profile it's free". Here is a search:
For Twitter, we can search for the common element ""tweets & replies":
For Meetup and Github, "member since" is a good token to use.
Who can suggest other examples?