YC Summer 2006 (S06) companies

Jamglue built a browser-based platform where musicians and hobbyists uploaded original tracks, then remixed each other's work using an in-browser mixer. The mixer handled per-track volume, panning, and tempo sync, replacing standalone audio software for casual music creation. A social layer let users share, embed, and discover mixes, turning the library of contributed tracks into a collaborative remix community.

Jumpchat connects SMS, email, and instant messaging into a single messaging layer, letting senders reach groups across all three channels without requiring recipients to download anything. The sender writes one message and Jumpchat delivers it to whichever channel each recipient uses. The product targets consumer group communication, replacing the manual work of coordinating across separate messaging apps.

Likebetter runs a web-based preference game that reveals personality traits through repeated binary photo choices. Users see two images side by side and pick the one they prefer, building a profile from their accumulated responses. The product replaces traditional written personality quizzes with a visual, choice-driven format aimed at general consumers.

OMGPop develops real-time social games for Facebook, iPhone, and the open web. Its titles run across major social networks and on its own destination site, reaching players wherever they already spend time. The studio replaces single-player or asynchronous casual gaming with live, multiplayer social experiences.

Pollground builds a social polling platform that lets anyone create and publish surveys online. Respondents answer and comment anonymously, replacing traditional structured research with open, crowd-sourced opinion gathering. It serves consumers and researchers who want quick, informal feedback from a broad public audience.

Scribd runs a subscription digital library that gives readers access to ebooks, audiobooks, magazines, podcasts, and over 300 million user-uploaded documents in one place. It serves students, educators, and general readers who would otherwise buy titles individually or search across multiple platforms. The product replaces per-title purchases and fragmented content subscriptions with a single all-access library.

Shoutfit built a social network centered on clothing, letting consumers share, discuss, and discover fashion with one another. The company also developed a clothing-focused search engine. Both products targeted everyday shoppers looking to find and talk about what to wear.

Talkito builds an open-source layer that adds voice and remote communication to any application, connecting to any speech-to-text or text-to-speech provider the developer chooses. It targets developers building or using AI coding tools, letting them speak to agents like Claude Code instead of typing. A Python library, Chrome extension, and MCP server cover desktop apps, web interfaces, and agentic workflows.

Thinkature builds a collaborative online workspace for teams to share and organize ideas in real time, replacing ad hoc tools like whiteboards, sticky notes, and scattered documents. Business professionals use it to brainstorm, plan, and align visually without being in the same room.

Xobni builds contact intelligence software for email and mobile users. Its Smartr suite automatically aggregates every person a user has emailed, called, or texted into a unified contact profile, pulling in job titles, company details, email history, and social feeds from LinkedIn, Facebook, and Twitter. The product replaces manual contact management and inbox digging across Outlook, BlackBerry, Gmail, Android, and iPhone.

Zanbazaar lets anyone build and publish curated product catalog pages to recommend items to other shoppers, replacing the informal word-of-mouth and editorial work done by blogs or fan sites. Curators earn a cut of referral revenue when their recommendations drive a sale. The platform shut down in 2007.