About 50% is the digest from online research, the other half - from our own knowledge base which includes interviews with experts, HR managers, Business Owners, Immigration Lawyers etc.
You can find basic to advanced information on topics like writing CV or Cover Letters - but you may not get those to perfection even with dozens of hours of independent research. You will not find anything useful on things like negotiating work visas or how you can add real value to an employer.
Part answer lies in the reason why we launched the platform: because there is no place that talks about these topics to a good depth level in the context of the UK (hello dear UK University Career Centres, Graduate Career Coaches, "Helpful" Recruiters, Immigration Lawyers trying Career Advice), and fit for graduates who would need UK work visas to stay here.
Big bulk of the knowledge is based on own experience on what works & what doesn't.