10月20日下午，话题"多邻国崩了"冲上热搜。社交平台上，部分用户发帖反映：该应用出现无法连接、持续显示加载页面、无法提交学习进度、打卡中断 等问题。还有用户表示，误以为是设备或网络故障，但在尝试重启手机、重装应用后，应用显示仍无法正常启动。 不过，需注意的是，北京时间10月20日下午，包括多邻国在内的多个互联网应用程序和平台突然陷入"瘫痪"。最新消息显示，上述"掉线"事故与亚马逊 Amazon Web Seivices(下称"AWS")服务突发故障有关。 据亚马逊AWS健康状态(Service health)页面公布的信息，此次故障源头指向亚马逊位于北弗吉尼亚的大型数据中心设施。其表示，美国东部-1区域(US- EAST-1)的多项AWS服务出现错误率升高及延迟增加的情况；Amazon DynamoDB在请求处理时错误率过高，潜在原因似乎与该端点的DNS解析有关。 记者注意到，不少多邻国用户担忧数百天的"连胜纪录"可能中断，也有用户对于软件内道具，如三倍经验包、冲击经验榜等因故障失效感到不满。截至记 者发稿，多邻国官方尚未公布具体故障原因。 据全球网络监测服务网站DownDetector，此次亚马逊AWS服 ...

Core Insights - Duolingo announced the launch of "Duolingo Ads" to enhance control over its advertising business, aiming to provide high-quality advertising resources for advertisers [2] - The company is shifting from a demand-side platform (DSP) model to a direct sales approach to improve ad quality and user experience [5][6] - Early tests with major brands showed promising results, with a 3% increase in ad click-through rates and a 94% completion rate for rewarded video ads [5][10] Advertising Service Transformation and Upgrade - Duolingo has relied on DSP for ad services, with free users making up about 90% of its user base [5] - The traditional ad model led to low-quality ads that did not align with Duolingo's high user experience standards [5] - The company aims to better control ad content and quality through direct sales, allowing for partnerships that match its premium positioning [5][6] Collaboration with Major Brands - Since May, brands like Marriott Bonvoy, Intrepid Travel, Universal Pictures, and Adobe have tested Duolingo Ads, with two-thirds of advertisers opting to renew contracts [5][10] - The new advertising platform has shown significant potential, enhancing brand collaboration and customization [6] AI Application and Creative Advertising - Duolingo's new ad features leverage its humorous and rebellious brand tone, enhancing ad appeal through creative content [7] - Ads will include animated formats featuring Duolingo's virtual characters, acting as "real ambassadors" for brands [10] Future Plans for Duolingo Ads - Although ad revenue accounted for less than 7% of Duolingo's total revenue in 2023, the company sees significant growth potential in its advertising business [10] - Duolingo has 47 million daily active users, indicating a strong foundation for ad revenue growth [10] - Future pricing strategies will include managed services and partnerships, with plans to introduce third-party measurement for user engagement [11] - The company aims to enhance personalized ad content while maintaining user experience, positioning itself as a key player in the advertising industry [11]

Core Insights - The article discusses the evolution of viral marketing, highlighting a shift from positive, entertaining content to content that often gains attention through controversy or negative reactions [1] - The SPREAD framework is introduced as a tool for brands to navigate the complexities of modern viral marketing, allowing for critical assessment and optimization of content before release [2] SPREAD Framework Dimensions - **Socially Useful and Sensitive**: Successful marketing campaigns today often provide value or meaningful actions, as seen in Duolingo's language equality advocacy and Dove's "Cost of Beauty" campaign, which resonated deeply with audiences [3][4] - **Provocative**: Effective campaigns challenge norms and provoke thought, such as Patagonia's "Don't Buy This Jacket" and Elf Beauty's "So Many Dicks," which raised awareness on diversity issues [5][6] - **Replicable**: Content that encourages participation and user-generated versions, like TikTok's "Roman Empire" trend, can significantly amplify brand exposure [7][8] - **Emotional**: Content that triggers emotional responses is crucial, with Airbnb's campaign successfully tapping into nostalgia and connection, while Peloton's ad failed due to a lack of empathy [9][10] - **Ambiguous**: Ambiguity can spark curiosity and sharing, as demonstrated by LEGO's "Rebuild the World" campaign, which encouraged personal interpretation [11][12] - **Distributive**: Content must be adaptable across various platforms to maximize reach, as seen in campaigns like the "DollyPartonChallenge" and Disney's "ShareYourEars" [13][14] Conclusion - The SPREAD framework provides brands with a structured approach to create impactful content that resonates with audiences while maintaining their core values, essential in a landscape where consumer behavior is increasingly selective and fragmented [2][14]