Well I promise you, I am a degreed librarian (so one would think I can type a query), and it's all about what your query is and how far you are willing to drill down. But let me tell you, there are PLENTY of names I've never seen that pop up (I spent all day today going over Round 1 names), which tells me each person has their own secret entries they are searching and that's that. I am always impressed with many of the DPers here. Always. Best I can do is read the article and try to pick out the keywords they were using to find it, and develop a search using those for future DPs.
Also -- I will never twitter so I'm way behind the 8-ball and accept there will be names I'll never know that are discovered there and only there.
And after all that, you may have 5 names who are all similar and only 1 will die, and you need to be lucky to pick the right person and leave the chaff. That is an art that no degree will help me with. I'm learning every day.
SC