Well a Google search for "egghead.com" would have saved you the trouble of posting this.

First result on Google is a Wikipedia article[0]: Egghead Software was a computer software retailer. Founded in 1984, it filed bankruptcy in 2001 and its domain name was acquired by Amazon.com.

[0] https://en.wikipedia.org/wiki/Egghead_Software

What are your theories why Amazon registered Egghead.com?