Most online travel stocks declined Monday, with Orbitz Worldwide Inc. falling as a Citi Investment Research analyst started covering the stock with a “Hold” rating, citing strong competition.
In a client note, he wrote factors such as its valuation and general growth in the online travel space make Orbitz shares “potentially compelling” over time. Still, “substantial [...]

The cover story for the April issue of the journal Astrobiology, the new research also pushes back the earliest direct evidence of biological material on Earth by about 200 million years.
Cellulose is the tough, resilient substance best-known as the major structural component of plant matter. It is one of the most abundant biological materials on [...]

SAN FRANCISCO (Reuters) - Yahoo said on Tuesday it is backing a program by rival Google to make software work fluidly across different social networks, and will create a joint foundation to promote the effort.
The normally fierce competitors are working together in the OpenSocial network, which Google formed in November to lure Web software developers [...]