Contents in each page matter, because crawler will read its text which matches to keyword typed in and capture them on to the result page. This is why writing contents are decisively important for SEO. It should consider the relevancy between what you are writing and what your users might search for.
1. Ensure what you are writing: Depending on the purpose of the site and contents you are writing it can be fact, journals, article, news or your opinions on certain subject etc. whatever the issue will be you will have to admit that the contents you are about to upload will be presented to public which you should carefully researched and thought through. It is your dignity mentioning about any issues to be shared with users.
2. Link out to your sources: Google detect links on your site as extra avenues and to see possibility of further information.
3. Unique contents It is important that you are writing your own contents, rather than copying them from other sites. If you use contents from other site, it will only duplicate but if you are creating an original message they will be the one who will copy your contents. If you are concerned of keeping your contents safe under copyright there are places where you can be protected by government, such as United State copyright office.
4. Users participation: Involving users to participate is another good idea. It would be good to let them question or leave comment, or review on something that you wrote if possible.
5. Correct use of spelling and grammar: If spelling mistake occurs, crawlers will most likely find it as spam. Always make sure that you are using the correct spellings and grammars.

