Description: iOffer is an online marketplace that allows buyers and sellers to negotiate prices directly. It focuses on collectibles, crafts, and antiques. Sellers list items and buyers make offers or buy at listed prices.
Type: software
Description: Stack Overflow is a popular question and answer site for programmers. Users can ask coding questions and receive answers from a community of developers. The site has a reputation system to rate helpful responses.
Type: software
Pricing: Subscription