Want to know the future? (Score 1)

Yes, the future. Topics that are currently "mildly cool" or obscure will be the hot topics of tomorrow.

Here are some:
1. LDAP application books. Yes, I said LDAP. There is a growing amount of data that is being stored in LDAP directory databases rather than Oracle (or other relational databases).
Therefore, application LDAP books will become more and more into vogue in a year. Afterall, look at how many Oracle books there are.
There is a relationship between amount of data in a type database and the amount of books written about that type of database. They both increase togeather at a given rate.

2. Peer-to-Peer for business. I have worked in business Internet communications for 6 years. Peer-to-Peer works and will work for business (in about a year.

Later...