Meanwhile , other companies developed their own applications -LRB- Excite , ORGANIZATION@1 , ORGANIZATION@2 , and ORGANIZATION@3 -RRB- , each with its own proprietary protocol and client ; users therefore had to run multiple client applications if they wished to use more than one of these networks .

Meanwhile , other companies developed their own applications -LRB- ORGANIZATION@3 , ORGANIZATION@1 , Excite , ORGANIZATION@2 , ORGANIZATION@4 -RRB- , each with its own proprietary protocol and client ; users therefore had to run multiple client applications if they wished to use more than one of these networks .
