VB is still used a lot, sure, and there are definitely jobs in it, but more and more companies are forgoing it for new projects. C# does everything VB does without the little idiosyncrasies. I've used both VB and C# extensively and have never found vb to have any advantage over C#, yet c# has many advantages over VB. There's a reason Microsoft writes the vast majority of their .NET code in c#.
I agree with learning the web stack (Html/css/js). There are tons of jobs out there for that stuff.