Facebook's public debut was the most anticipated tech IPO since Google went public in August 2004. But the stock has lost much of its value since it began trading in mid-May.

Below is a look at how the stocks of some recently public companies are faring. The companies are all loosely Internet-related, though their businesses vary widely.

— Facebook Inc., social networking company, first day of trading on May 18, 2012

Pricing: $38 per share

First-day's close: $38.23, up 0.6 percent from IPO price

Friday's close: $33.05, down 14 percent from IPO price

Trading range since IPO: $25.52 to $45

— Yelp Inc., developer of online games, first day of trading on March 2, 2012

Pricing: $15 per share

First-day's close: $24.58, up 64 percent from IPO price

Friday's close: $21.64, up 44 percent from IPO price

Trading range since IPO: $14.10 to $31.96

— Zynga Inc., developer of online games, first day of trading on Dec. 16, 2011

Pricing: $10 per share

First-day close: $9.50, down 5 percent from IPO price

Friday's close: $6, down 42 percent from IPO price

Trading range since IPO: $4.78 to $15.91

— Jive Software Inc., creator of tools to run social networks for businesses, first day of trading on Dec. 13

Pricing: $12 per share

First-day close: $15.05, up 25 percent from IPO price

Friday's close: $20.49, up 70 percent from IPO price

Trading range since IPO: $14.18 to $28.15

— Angie's List Inc., consumer-reviews site, first day of trading on Nov. 17

Pricing: $13 per share

First-day close: $16.26, up 25 percent from IPO price

Friday's close: $15.06, up 12 percent from IPO price

Trading range since IPO: $10.77 to $19.82

— Groupon Inc., online deals company, first day of trading on Nov. 4

Pricing: $20 per share Continued...