b2b门户的维护成本是多少？
b2b web portal maintenance is must required when you are progressing. in this modern era technology change day by day so you must need to maintain a successful b2b portal. the cost to maintain b2b portal is rely on updation. database maintenance and web portal regular maintenance cost is approx 10%-20 of development cost.
推广b2b商业门户网站的方式有数千种。数字营销是推广任何在线b2b门户的最有效方法。它包括seo，smo，aso和电子邮件营销，google付费cpc广告系列，社交媒体广告系列等等。