Today there are SEO promotion and consulting services for small businesses. They hire people with knowledge in search engine optimization and some time ago SEO wasn't even known.

With Google's constant algorithm changes, SEO changes too. What will happen with SEO in the future? Will SEO keep changing or eventually bail out?

Should i rely on SEO as a long term job once i am accepted and should i keep improving my knowledge there? Is SEO recognzed as a regular daily job in Ministry Of Labor?