# Tie Strength > Social networks shape how information travels, how communities form, and how people encounter new ideas. ## Entries - [Weak Ties Explained: Granovetter's Theory and a Redrawable Network Diagram](https://tie-strength.pages.dev/weak-ties-granovetter-explained/): Weak ties are relationships involving relatively limited interaction, emotional closeness, or shared time, such as acquaintances. - [Build Your First Social Network Graph in Python With an AI Coding Assistant](https://tie-strength.pages.dev/build-first-network-graph-python/): A first social network graph can be built from two small tables: one listing people and another listing their relationships. - [Homophily and Recommendation Feeds: How Algorithms Shape Social Exposure](https://tie-strength.pages.dev/homophily-recommendation-feeds/): Homophily is the tendency for people with similar characteristics, interests, or backgrounds to form relationships. - [Mutual, Follow, and Broadcast Ties: Three Ways Platforms Structure Social Networks](https://tie-strength.pages.dev/platform-tie-structures-mutual-follow-broadcast/): Platforms structure social relationships in different ways: mutual connections require recognition from both sides, follow relationships can be. - [A Data Dictionary for a Small Social Network Survey: Variables, Name Generators, and Tie Measures](https://tie-strength.pages.dev/social-network-survey-data-dictionary-template/): A social network survey data dictionary defines every variable, its meaning, permitted values, and role in the network dataset. - [One-Way Follows and Fictional Characters: Understanding Ties, Weak Connections, and Structural Holes](https://tie-strength.pages.dev/one-way-follows-fictional-character-network-ties/): A follow relationship involving a fictional character can be represented as a directed network tie even though one endpoint is not a human participant. ## About - [About Tie Strength](https://tie-strength.pages.dev/about/): what the site covers and how entries are made ## Optional - [RSS feed](https://tie-strength.pages.dev/feed.xml)