Which technologies to hunt in job descriptions?

Greetings, Java People!

At the moment I am going to start looking for a new job and what I want is to find a place where I can study some new emerging technologies. A problem is that I dont know what to look for. I dont want to waste time creating some next swing-jdbc-db application, but want to find some field which can be a perspective thing in future. I would like to ask you to share your thoughts on this topic.

As for me, I have heard that some new java technologies are becoming more and more popular. But actually these are just a buzz-words for me, I dont know whether this can be interesting in future. My list is:
1) noSQL databases
2) in memory data grids
3) cloud computing
4) parallel computing - Apache MapReduce etc
5) using some other languages with Java: Scala, Groovy etc

What do you think of these options?
Can you suggest yours?

I'm finding the noSQL concepts to be interesting and trying my hands on Apache Cassandra. It looks cool. An ideal candidate in the Cloud Computing stage.

A problem is that I dont know what to look for. I dont want to waste time creating some next swing-jdbc-db application, but want to find some field which can be a perspective thing in future. I would like to ask you to share your thoughts on this topic.

There is no reason why a no-SQL database like mongoDB / Cassandra should outperform SQl DBs in every use case. Technologies should be applied where they belong. For example I can build my next web-app using node.js but that would not necessarily be a great idea.

If your intent was to find a team that uses one of these technologies and broaden your exposure, then by all means scope the team out and learn the relevant technologies. When they have an open position they will consider you.

Deepak Bala wrote:

A problem is that I dont know what to look for. I dont want to waste time creating some next swing-jdbc-db application, but want to find some field which can be a perspective thing in future. I would like to ask you to share your thoughts on this topic.

There is no reason why a no-SQL database like mongoDB / Cassandra should outperform SQl DBs in every use case. Technologies should be applied where they belong. For example I can build my next web-app using node.js but that would not necessarily be a great idea.

If your intent was to find a team that uses one of these technologies and broaden your exposure, then by all means scope the team out and learn the relevant technologies. When they have an open position they will consider you.

Deepak, thanks for advice.
Actually my main intention was to find out which technologies are considered to be more perspective in the future. If I know this - I can search for some team that uses it.