In more detail
Quality over quantity
From the early days of search, Google has treated links between websites as a signal of trust. If a respected site links to yours, it is a little like someone vouching for you. The more trusted and relevant that someone is, the more their recommendation is worth.
That is why the source of a link matters so much. A link from your local newspaper, a trade association, a supplier you work with or a community group you sponsor makes sense. It connects you to real organisations in your area or your industry. A link from an unrelated site that exists only to sell links does not, and Google has become very good at telling the difference.
Buying links in bulk is the classic mistake. Packages that promise large numbers of links for a small fee usually place them on low quality sites with no real audience. At best they are ignored. At worst they can lead Google to trust your site less, which is far harder to undo than it was to create.
The good news is that most small businesses already have link opportunities they have never used. Think about the businesses you work alongside. Suppliers and manufacturers often list stockists or approved installers. Partners may be happy to mention you on a page about who they recommend. Local events, charities and clubs you support may thank sponsors on their websites. Trade bodies and accreditation schemes usually have member directories.
Local news is another natural source. A new service, a community project, a milestone or a useful local tip can all make a genuine story. Useful content on your own site helps too. A clear guide that answers a common question in your trade is the kind of thing other people are happy to link to.
Earning links this way is slower than buying them, but every link you earn is one you can be proud of, and each one adds to a reputation that keeps working for you.
