To protect themselves, catalog marketers should ask for material to back up claims rather than repeat what the manufacturer says about the product. If the manufacturer doesn't come forward with proof or turns over proof that looks questionable, the catalog marketer should see a yellow "caution light" and proceed appropriately, especially when it comes to extravagant performance claims, health or weight loss promises, or earnings guarantees. In writing ad copy, catalogers should stick to claims that can be supported. Most important, catalog marketers should trust their instincts when a product sounds too good to be true.
Write a blog. If you have a business, consider starting a blog as part of your marketing plan. You can write how-to articles, product reviews, answers to questions and posts about upcoming events. Blogs give you more flexibility than other forms of social media like Facebook or Twitter because you own the content and aren’t bound by a third party’s rules or restrictions. Also, if your posts include keywords or phrases and link to internal and external content, you can improve the search optimization of your website. Blogs drive sales because you can include product information and links to product pages. 
The development of digital marketing is inseparable from technology development. One of the key points in the start of was in 1971, where Ray Tomlinson sent the very first email and his technology set the platform to allow people to send and receive files through different machines. However, the more recognisable period as being the start of Digital Marketing is 1990 as this was where the Archie search engine was created as an index for FTP sites. In the 1980s, the storage capacity of computer was already big enough to store huge volumes of customer information. Companies started choosing online techniques, such as database marketing, rather than limited list broker. This kind of databases allowed companies to track customers' information more effectively, thus transforming the relationship between buyer and seller. However, the manual process was not so efficient.
Let’s start with the first scenario above. Suppose an affiliate is generating $100,000 in monthly revenue for a merchant, and getting $25,000 in monthly commissions. In this case, the network between the two may be taking $10,000 a month for its part in the process. In this case, the merchant may attempt to go around the network and set up a direct relationship with the affiliate–perhaps with a 30% commission.
Affiliate marketing has grown quickly since its inception. The e-commerce website, viewed as a marketing toy in the early days of the Internet, became an integrated part of the overall business plan and in some cases grew to a bigger business than the existing offline business. According to one report, the total sales amount generated through affiliate networks in 2006 was £2.16 billion in the United Kingdom alone. The estimates were £1.35 billion in sales in 2005. MarketingSherpa's research team estimated that, in 2006, affiliates worldwide earned US$6.5 billion in bounty and commissions from a variety of sources in retail, personal finance, gaming and gambling, travel, telecom, education, publishing, and forms of lead generation other than contextual advertising programs.