From a search engine optimization standpoint, the worst thing you can do is link to sites that are questionable. Linking to sites that have been banned or penalized by Google can hurt your search engine rankings. If you link to very many sites like that, you could end up getting banned yourself. Get banned or [...]

1. Lack of a common theme throughout the site. If a website is about cell phones, home improvement, banana desserts, and online education, it will require about 100 times as much authority to rank well in search engines. Adding a new section to your site that is completely unrelated to your site could cause a [...]