AUSTIN-Three companies based here are buying more real estate on the Information Highway, an ongoing trend in the state's capital where demand and expansions are racing at high speeds.

HOUSTON-ERealty.com, a Houston-based on-line residential real estate brokerage, has acquired half of the of TitleLink from Interliant Inc. Expansion plans ticket operations for Chicago, Los Angeles, San Diego and San Francisco.

AUSTIN-Chicago architect Leigh Breslau has unveiled a design to convert the Palmer Auditorium into the $89-million Long Center for the Performing Arts. The top-to-bottom renovation will feature a 2,310-seat main hall.

HOUSTON-Amicus Partners of Dallas is constructing a 17-story condominium tower near Rice University in close-in Houston. The tower is similar to an undertaking in Dallas.

DALLAS-A B2B developer of incubation projects will office in 10,986 sf in prestigious Las Colinas, becoming a tenant in the 256,535-sf class A 6565 MacArthur.

DALLAS-Equinix Inc., based in Mountain View, CA, is on line with a 55,000-sf high-tech center at Dallas' Infomart. The city's burgeoning high-tech industry triggers the company's decision to make a "significant investment" in the metroplex.

HOUSTON-An investment group led by Vista Equities Group has purchased a

HOUSTON-Spartan Leasing has put finishing touches to a 12,000-sf warehouse,