would like to know if there is an alternative site like topic links 3.0

As of my last knowledge update in October 2023, there are several platforms and tools that can serve as alternatives to Topic Links 3.0, depending on the specific features and functionality you are looking for. Some potential alternatives include:

**Diigo**: A social bookmarking tool that allows users to bookmark and tag web pages, share with others, and organize their research.

**Pinterest**: While primarily a visual discovery platform, Pinterest can be used to collect and organize links and resources on various topics.

**Pocket**: A content curation tool that lets users save articles, videos, and web pages for later reading. It can be used to categorize and organize content by tags.

**Evernote**: A versatile note-taking app that allows users to save links, along with notes, images, and other content. It includes tagging and searching features.

**Raindrop.io**: A bookmark manager that allows users to save, sync, and organize links and URLs, with a visually appealing interface.

**Notion**: A highly customizable workspace that can be used for note-taking, project management, and organizing links and resources.

**Google Keep**: A simple note-taking and organization tool that allows users to save links, notes, and checklists.

**Trello**: A project management tool that can be used to organize links using boards, lists, and cards.

If you're looking for a specific functionality (such as collaboration, multimedia support, etc.), please clarify, and I can help narrow down the options. Always check the latest features and capabilities of these platforms, as they may have evolved since my last update.