SEM是Search Engine Marketing的縮寫(xiě)，中文意思是搜索引擎營(yíng)銷。SEM是一種新的網(wǎng)絡(luò)營(yíng)銷形式。SEM所做的就是全面而有效的利用搜索引擎來(lái)進(jìn)行網(wǎng)絡(luò)營(yíng)銷和推廣。SEM追求最高的性價(jià)比，以最小的投入，獲最大的來(lái)自搜索引擎的訪問(wèn)量，并產(chǎn)生商業(yè)價(jià)值。
　　SEM可以在搜索引擎中進(jìn)行品牌的維護(hù)，將品牌的負(fù)面信息盡可能少的呈現(xiàn)在搜索用戶面前，可以預(yù)防競(jìng)爭(zhēng)對(duì)手在網(wǎng)絡(luò)上惡意的誣陷。同時(shí)可以在進(jìn)行正面和商業(yè)信息的推廣，進(jìn)而達(dá)到品牌推廣的目標(biāo)！

Search Engine Marketing SEM is the abbreviation of the Chinese search engine marketing means. SEM is a new form of online marketing. SEM did was comprehensive and effective use of search engines to conduct online marketing and promotion. SEM to achieve the highest cost, with minimal input by the largest traffic from search engines and generate business value.
SEM search engine in the maintenance of the brand, the brand of negative information as little as possible before the presentation of the search user, you can prevent competitors in the network, malicious framed. During the same time can promote a positive and business information, thereby to achieve branding goals!
　　SEM的服務(wù)主要有4種方式：
　　一、 競(jìng)價(jià)排名，顧名思義就是網(wǎng)站付費(fèi)后才能被搜索引擎收錄并靠前排名，付費(fèi)越高者排名越靠前；競(jìng)價(jià)排名服務(wù)，是由客戶為自己的網(wǎng)頁(yè)購(gòu)買(mǎi)關(guān)鍵字排名，按點(diǎn)擊計(jì)費(fèi)的一種服務(wù)?？蛻艨梢酝ㄟ^(guò)調(diào)整每次點(diǎn)擊付費(fèi)價(jià)格，控制自己在特定關(guān)鍵字搜索結(jié)果中的排名；并可以通過(guò)設(shè)定不同的關(guān)鍵詞捕捉到不同類型的的目標(biāo)訪問(wèn)者。
　　而在國(guó)內(nèi)最流行的點(diǎn)擊付費(fèi)搜索引擎有百度，雅虎和Google。值得一提的是即使是做了PPC（Pay Per Click，按照點(diǎn)擊收費(fèi)）付費(fèi)廣告和競(jìng)價(jià)排名，最好也應(yīng)該對(duì)網(wǎng)站進(jìn)行搜索引擎優(yōu)化設(shè)計(jì)，并將網(wǎng)站登錄到各大免費(fèi)的搜索引擎中。

SEM's services are mainly 4 ways:
1, PPC, paid before the name suggests is the site to be your search engine and front rank, who paid the higher the ranking the more toward the front; PPC services are provided by customers to buy keywords for their website rankings, total per-click a service fee. Customers can pay by adjusting the price per click, control their own specific keyword in the search results ranking; and can set different key words to capture different types of targeted visitors.
In the most popular PPC search engines, Baidu, Yahoo and Google. It is worth mentioning that even do PPC (Pay Per Click, pay per click) ads and PPC, the best should also be search engine optimized website design and website log on to the major free search engines .

　　二、 購(gòu)買(mǎi)關(guān)鍵詞廣告，即在搜索結(jié)果頁(yè)面顯示廣告內(nèi)容，實(shí)現(xiàn)高級(jí)定位投放，用戶可以根據(jù)需要更換關(guān)鍵詞，相當(dāng)于在不同頁(yè)面輪換投放廣告；

Second, buy keyword advertising on search results page displays the advertising content, to achieve high positioning put in, the user can be replaced key words, the equivalent of rotation of ads in different pages;
　　三、 搜索引擎優(yōu)化（SEO），就是通過(guò)對(duì)網(wǎng)站結(jié)構(gòu)、關(guān)鍵字選擇、網(wǎng)站內(nèi)容規(guī)劃進(jìn)行調(diào)整和優(yōu)化，使得網(wǎng)站在搜索結(jié)果中靠前。 搜索引擎優(yōu)化（SEO）又包括網(wǎng)站內(nèi)容優(yōu)化、關(guān)鍵詞優(yōu)化、外部鏈接優(yōu)化、內(nèi)部鏈接優(yōu)化、代碼優(yōu)化、圖片優(yōu)化、搜索引擎登錄等。
　　PPC 為 Pay Per Click的縮寫(xiě) PPC是英文Pay Per Click的縮寫(xiě)形式,其中文意思就是點(diǎn)擊付費(fèi)廣告。
　　目前，SEM正處于發(fā)展階段，它將成為今后專業(yè)網(wǎng)站乃至電子商務(wù)發(fā)展的必經(jīng)之路。
　　SEO是屬于SEM的一部分，是實(shí)現(xiàn)SEM搜索引擎整合營(yíng)銷的一種手段。

Third, search engine optimization (SEO), is through to the site structure, keyword selection, site planning to adjust and optimize the content so that site in search results front. Search Engine Optimization (SEO), it also includes web content optimization, keyword optimization, external link optimization, internal link optimization, Code optimization, image optimization, search engine registry and so on.
PPC stands for the Pay Per Click Pay Per Click PPC is the abbreviation of the English form, its meaning in Chinese is click advertising.
At present, SEM is in the development stage, it will be the future development of professional e-commerce website and even a must.
SEO SEM are a part, is to achieve integrated search engine marketing SEM as a means.