I have questions about categories. Is it okay to have child (nested categories)?
Software Development -- Web ---- Java Script ---- PHP ---- HTML 5 -- Low level ---- C ---- Assembly
What impact will regarding SEO and search engines?
In this case there three categories are just wrappers that won't contain any posts Software Development, Web and Low level.
How will such structure of categories affect SEO?
URL of post
Hello World in following category hierarchy
Software Development -- Mobile Development ---- Android development
For me personally it looks ugly.
Development word is very redundant. But what about search engines ?