Now, some buckets are worth more than others, and the three main buckets that you need to be aware of for search rankings are quality, trust and authority. So quality: what Google is trying to measure when they’re trying to figure out what sites should rank is offering something valuable or unique or interesting to googles searchers. For example: good content—if you are selling t-shirts and you are using the same description that every other t-shirt seller is using on their website then you are not offering anything unique to Google’s searchers.
While it is possible to see results from your marketing efforts quickly, the reality is that marketing, especially the type that generates long-term results and referrals, takes time. You're competing in an increasingly crowded and loud marketplace. The better you can connect with your ideal market and develop a relationship with it, the better your results will be. If you provide a great product or service and are attentive to your customers, your customers will provide you with positive reviews, referrals, and testimonials that will help you stand out in the crowd.
While SEO allows you to optimize your website for a greater chance in appearing higher in search results, and online advertising allows you to send promotional content to the target audience of your choosing, SEM combines both benefits as your content is both optimized for higher search rankings and is placed primarily in front of audiences who are most likely to convert when they click on your ads.