That is a very open ended question. Web development is programming at its core, with a little visual work thrown in (or not). Really depends on the project.
Web front ends for databases is on a whole other level than say your grandma's quilting homepage.
I would say that there is certainly a constant market for mobile web development, mobile app development, etc. Cloud is really starting to take off, so a lot of companies are moving to Software as a Service (SaaS) so hard core programmers can probably still make a decent living working for the large companies.
As for languages and tools. Can't go wrong with C# and Visual Studio, ASP.NET, MS-SQL. Eclipse and Java. For mobile there are the Android IDE and Objective C for iOS.
I'm sure...