To ensure the successful completion of all the tasks by the end of the month while effectively marketing your services within a budget of $1000 per month, here is a full plan with a simplified marketing campaign:

1. **Task Organization**:

   a. **doo.ninja**: Update the look and integrate new offerings seamlessly to enhance user experience.
   
   b. **doo.world**: Implement a fresh new look to engage and attract users effectively.
   
   c. **doo.tours**: Develop and launch the travel b2c, b2b, and hosting services to target different customer segments.
   
   d. **ai.doo.world**: Ensure ai.doo.world is ready for sign-ups and usage with automated posting and targeted ads.

2. **Budget Allocation**:

   a. **doo.ninja updates and integrations**: Allocate a portion of the budget for redesign and integration efforts.
   
   b. **doo.world redesign**: Invest in revamping doo.world to make it visually appealing and user-friendly.
   
   c. **doo.tours services**: Use funds for promoting the new travel services through ads to drive sign-ups.
   
   d. **ai.doo.world promotion**: Invest in targeted ads to attract users to sign up for ai.doo.world.

3. **Marketing Campaign**:

   a. **Social Media Promotion**: Leverage social media platforms to showcase the updated services and drive engagement. Use visually appealing content and engaging captions.
   
   b. **Email Marketing**: Send out targeted emails to your subscriber base promoting the new features and services. Encourage them to sign up and explore.
   
   c. **SEO Optimization**: Ensure your website content is optimized for relevant keywords related to your services to improve search engine visibility.
   
   d. **Content Creation**: Develop blog posts, videos, and graphics highlighting the benefits of your services. Share this content on your website and social media channels.
   
   e. **Partnerships and Collaborations**: Collaborate with influencers or relevant businesses to expand your reach and attract a new audience.
   
   f. **Customer Referral Program**: Encourage existing users to refer friends and family by offering incentives or discounts. Word-of-mouth can be a powerful marketing tool.
   
   g. **Limited Time Offers**: Create promotional offers or discounts for early sign-ups to create a sense of urgency and drive conversions.

4. **Next Phases**:

   Plan to tackle doo.wallet, doogo, mydoo.shop, and doo.delivery after successfully completing the current tasks. Allocate resources and plan a marketing strategy for these services in the next phase.

By following this comprehensive plan and executing the outlined marketing campaign, you can efficiently complete the required tasks and promote your services effectively within your budget constraints.